Independent testing laboratories directory.

The following directory lists independent testing laboratories serving the rubber industry, including address, contact person and types of technical service offered by each laboratory.

Akron Polymer Laboratories,
Div. of Tritech Laboratories
1480 Englewood Ave.
Akron, OH 44305
Phone: [phone]
Fax: [phone]
Website: www.akronpolymerlab.com
Email: [e-mail]
Contact: Allison Ryan, Lab Mgr.
Technical service: Physical and
dynamic mechanical testing; chemical
analysis and formula reconstruction;
contract development and custom synthesis;
rubber, plastic, latex, adhesives
and related polymers

Akron Rubber Development
Laboratory, Inc.
2887 Gilchrist Road
Akron, OH 44305
Phone: [phone]
Fax: [phone]
Contacts: Jerry Leyden, president;
Kris Baranwal, exec. VP, technical;
Tom Knowles, VP, chemical services;
Jim Drummond, mgr., physical testing;
Harry Bader, VP, latex services; Dennis
Coz, mgr., chem lab.; Mac Wilborn, VP,
business dev.; Bob Samples, CEO;
Abraham Pannikottu, mgr. predictive
testing
Website: www.ardl.com
Email: [e-mail]
Technical service: Physical and chemical
testing; certification; compound
development of dry rubber and latex;
compound analysis, testing and formula
reconstruction; product and process
development; litigation services; market
research services; and FDA GMP
510(k) QA/SQA assistance, FEA analysis,
MTS testing, CSR testing, automotive
materials certifications, long term
agings in fluids/fuels
  (see ad on this page)

Alloy Extrusion Company
4211 Karg Industrial Pkwy.
Brimfield, OH 44240
Phone: [phone]
Fax: [phone]
Contact: James G. Anthony, president
Technical service: Complete developmental
and pilot facilities for CV curing

American Standards Testing
Bureau, Inc.
40 Water St.
New York, NY 10004
Phone: [phone]
Fax: [phone]
Contact: Charles Coleman, service mgr.
Technical service: Complete analytical,
formulation, laboratory, engineering
and R&D services

Aspen Research Corporation
436 West County Rd. D
New Brighton, MN 55112-3522
Phone: [phone]
Fax: [phone]
Contacts: Douglas Becklin, manager,
elastomer technology; Brad Roberts,
manager, marketing
Technical service: Chemical analysis,
physical properties, heat and fluid resistance,
failure analysis, product development
for elastomers and other polymeric
materials, physical testing, material
characterization, product development
and failure analysis

Atlas Weathering Services Group
45601 N. 47th Avenue
Phoenix, AZ 85087-7042
Phone: [phone]
Fax: [phone]
Contact: Larry Bond, VP sales and
client services
Technical service: Outdoor (real time)
weathering in 23 exposure sites around
the world; outdoor accelerated weathering
(EMMAQUA, EMMAQUA+); instrumental
color, gloss, visual evaluation,
physical, optical and mechanical analysis

Bodycote Broutman, Inc.
1975 North Ruby St.
Melrose Park, IL 60160
Phone: [phone]
Fax: [phone]
Website: www.na.bodycote-mt.com
Email: [e-mail]
Contact: Barbara Gedeon, president
Technical service: Materials consulting
and testing laboratory specializing in
polymers, composites, plastic and rubber,
failure analysis, product testing and
evaluation
  (see ad on page 86)

Bodycote Materials Testing Canada -
Bodycote Ortech
2395 Speakman Dr.
Mississauga, Ontario, Canada L5K 1B3
Phone: [phone]
Contact: J. Leidner, manager
Technical service: Testing of mechanical
properties, chemical analysis,
compounding, evaluation of environmental
aging, process development,
failure analysis

Bowser-Morner, Inc.
P.O. Box 51
Dayton, OH 45401
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.bowser-morner.com
Contact: Robert J. Rosencranes,
senior test engineer, product and materials
testing lab
Technical service: Simulated environmental
testing, chemical analysis, mechanical
and physical testing

Buffalo Testing Laboratories, Inc.
902 Kenmore Ave.
Buffalo, NY 14216
Phone: [phone]
Contact: E.J. Kris, technical director
Technical service: Rubber testing,
physical and chemical

Burgess Laboratories, Inc.
525 Ashland St., P.O. Box 981
North Adams, MA 01247
Phone: [phone]
Fax: [phone]
Website: www.burgesslab.com
Email: [e-mail]
Contact: Helen M. Donega
Technical service: Chemical analysis

Cameron Elastomer Technology
29501 Katy Freeway
Katy, TX 77494-7801
Phone: [phone]
Fax: [phone]
Website: www.camerondiv.com
Contact: Bruce Parker, mktg. mgr.
Technical service: Severe environment
testing at elevated pressures and
temperatures in a multiplicity of gas and
liquid environments, life prediction testing,
physical property measurement
including dynamic rheological testing,
thermal analysis
  (see ad on page 67)

Canadian Rubber Testing and
Development Ltd.
113-115 Cushman Rd., Unit #21
St. Catharines, Ontario,
Canada L2M 6S9
Phone: [phone]
Fax: [phone]
Website: www.myhreweb.com/crtd
Email: [e-mail]
Contact: Marvin Myhre, president
Technical service: Basic testing, tensile
and tear properties, set, air and oil
aging, low temperature, rheometer and
Mooney, rebound, DeMattia, mixing
(internal and mill) and curing, SPC/
WHMIS

Canadian Technical Services
34 Poplar Heights Dr.
Etobicoke, Ontario, Canada M9A 5A2
Phone: [phone]
Fax: [phone]
Contact: Paul Nessim, president
Technical service: Formulation and
developing rubber compounds, project
study, feasibility reports, plant layout,
QC and process control procedures
development

City Testing & Research Labs, Inc.
967 E. Hazelwood Ave.
Rahway, NJ 07065
Phone: [phone]
Fax: [phone]
Contact: H. Goldenberg
Technical service: Quality assurance
from specimen preparation testing and
reports of results

Collaborative Testing Services, Inc.
Georgi Orlov, Program Analyst
21331 Gentry Dr.
Sterling, VA 20165
Phone: [phone]
Fax: [phone]
Website: www.collaborativetesting.com
Email: [e-mail]
Contact: Georgi Orlov
Technical service: Specialize in interlaboratory
testing programs; tests available
include: Tensile properties, hardness,
Mooney viscosity and vulcanization
characteristics (ODR and MDR)

Dek-Tron/Custom Scientific
Instruments, Inc.
244 East Third St.
Plainfield, NJ 07060
Phone: [phone]
Contact: Segundo Vargas
Technical service: Physical test equipment

Delsen Testing Labs, Inc.
1024 Grand Central Ave.
Glendale, CA 91201
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.delsen.com
Contact: John Moylan, president
Technical service: Mechanical, physical,
environmental, electrical and flammability
testing, polymer analysis

Detroit Testing Laboratory, Inc.
7111 E. Eleven Mile
Warren, MI 48092-2709
Phone: [phone]
Fax: [phone]
Website: www.dtl-inc.com
Email: [e-mail]
Contact: Mike Garvey
Technical service: A2LA accreditation,
physical testing, rubber/plastic/composite;
thermal analysis; theology; and a
number of environmental simulation
tests; wide variety of testing services

DL Labs, Inc.
116 East 16th St.
New York, NY 10003-2112
Phone: [phone]
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.dllabs.com
Contact: Thomas J. Silva, V.P.
Technical service: Physical and performance
testing of sealants, coatings

DSET Laboratories
45601 N. 47th Ave.
Phoenix, AZ 85087-7042
Phone: [phone]
Fax: [phone]
Contact: Tom Anderson, site mgr.
Technical service: Outdoor (real-time)
weathering in AZ; outdoor accelerated
weathering (EMMAQUA, EMMAQUA+);
instrumental color, gloss, visual evaluations,
physical, optical and mechanical
analysis; worldwide network of 23 sites

Eastern Laboratories, Inc.
3640 Main St.
Springfield, MA 01107
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.elabs.com
Contact: Geraldine Mikes, president
Technical service: Materials characterization
for polymers and plastics,
extraction studies of medical devices
and various plastic materials, product
deformulation, thermal decomposition

Entela Inc.
3033 Madison Ave.
Grand Rapids, MI 49548
35550 Industrial Rd.
Livonia, MI 48150
Phone: [phone]
Fax: [phone]
Website: www.entela.com
Email: [e-mail]
Contact: Customer service
Technical service: Complete engineering
and testing laboratory; materials
testing; environmental; product validation;
custom test machines and fixtures,
failure analysis, finite element
analysis, FMEA; product certifications,
inspections, accelerated life testing
(FMVT, HALT, HASS, etc.)

Experimental Services, Inc.
595 Waterloo Road, Unit E
Suffield, OH 44260
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Contact: Karl Winkler, president
Technical service: Testing for polymers
and polymer products, product
development, prototype fabrication,
molding, compounding and engineering
services; specialists in automotive engine
mounts, bushings, tuned vibration
absorbers, components

RV Fitzsimmons & Associates Inc.
1860 Arthur Dr.
West Chicago, IL 60185
Phone: [phone]
Fax: [phone]
Contacts: T. Lambert, manager;
R. Fitzsimmons, director
Technical service: Complete chemical
analytical services for compositional
analysis and testing of rubber and all
polymeric products, including compositions
of rubber materials, all additives
and thermal testing

Gaynes Labs, Inc.
9708 Industrial Dr.
Bridgeview, IL 60455
Email: [e-mail]
Website: www.nrinc.com/gaynes
Contact: Phil Ross, mgr. of material
testing
Technical service: Physical testing of
rubber products and materials in accordance
with ASTM methods

Hauser Laboratories
5555 Airport Blvd.
Boulder, CO 80301
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Contact: Kurt Ammon, marketing associate/technical
services
Technical service: Materials testing,
polymeric analysis and identification,
formulation analysis, EPA 9090, expert
testimony

Institute for Research, Inc.
8330 Westglen Dr.
P.O. Box 630489 (Houston, TX 77263)
Houston, TX 77063
Phone: [phone]
Website: www.institute4research.com
Email: [e-mail]
Contact: Dr. Ben Mosier, president/CEO
Technical service: Contract R&D,
autoclave testing of elastomers, formulating
and blending rubber and elastomers;
physical and chemical testing of
rubber, dielectric constant and strength,
dissipation factor, thermal analysis
(DSC, DT, TG, SEM, EDS, BC/MS),
electrical and optical methods of analysis

International Testing Laboratories
580 Market St.
Newark, NJ 07105
Phone: [phone]
Contact: Dr. M.M. Sackoff, executive
director of laboratories
Technical service: Physical testing,
chemical testing, product development

Kimball Lane Research Facility
P.O. Box 268
Kennebunk, ME 04043
Phone: [phone]
Contact: Laurie Cohen, manager
Technical service: Prototypes; small
batch processing; market research;
compound feasibility studies; data research

Laucks Testing Labs, Inc.
940 S. Harney
Seattle, WA 98108
Phone: [phone]
Contact: J.M. Owens
Technical service: Chemistry, microbiology
and technical services

Lord Laboratories
P.O. Box 372
East Pointe, MI 48021-0372
Phone: [phone]
Fax: [phone]
Contact: Sean Gosselin, president
Technical service: Lubricants for rubber
industries

MEI-Charlton, Inc.
2233 S.W. Canyon Rd.
Portland, OR 97201-2499
Phone: [phone]
Fax: [phone]
Website: www.meic.com
Email: [e-mail]
Contact: D.G. Chakrapani, president
Technical service: Chemical and physical
testing, consulting and failure investigations

Metuchen Analytical, Inc.
Kendall Infrared Laboratories
101 Liberty St.
Metuchen, NJ 08840
Phone: [phone]
Phone: [phone]-LAB
Fax: [phone]
Website: www.libralabs.com
Email: [e-mail]
Contact: J. Stephen Duerr, president
Technical service: Analytical research
services in chemical analysis, unknowns
identification and materials failure
analysis

Momentum Technologies, Inc.
1507 Boettler Rd.
Uniontown, OH 44685
Phone: [phone]
Fax: [phone]
Website: www.momentumtech.net
Email: [e-mail]
Contact: Joe Mellott, VP technology
Technical service: Third party testing
and compound development for asphalt
roofing and paving systems, adhesives,
coatings, natural latex, rubber and plastic

Natural Rubber Inspection Service
P.O. Box 786
Red Bank, NJ 07701
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Contact: Clifford Raisch, president
Technical service: Sampling, inspecting
and weighing of crude rubber

Nebraska Analytical Testing
Laboratories, Inc.
4123 S. 67th St.
Omaha, NE 68117
Phone: [phone]
Fax: [phone]
Contact: Seth Frishman, chief scientist
Technical service: Chemical testing
and analysis

Nevada Automotive Test Center
Hedges Transportation, Inc.
P.O. Box 234
Carson City, NV 89702
Phone: [phone]
Fax: [phone]
Website: www.natc-ht.com
Email: [e-mail]
Contact: Henry C. Hedges, Jr.
Technical service: Engineering research,
testing, development, traction
and winter performance, wear and
durability; thermal profile, ride and handling,
real time force and moment measurements,
virtual proving ground
including computer modeling, simulation,
road profiling and validation

NSL Analytical Services
7650 Hub Pkwy.
Cleveland, OH 44125
Phone: [phone]
Fax: [phone]
Website: www.nslanalytical.com
Email: [e-mail]
Contact: Jan DiRosa, Mktg. & Sales
mgr.
Technical service: Elemental chemical
analysis, inorganic/organic

OCM Test Laboratory, Inc.
3883 E. Eagle Dr.
Anaheim, CA 92807
Phone: [phone]
Fax: [phone]
Contact: Bruce Sauer, lab director
Technical Service: Mechanical, physical,
chemical, thermal, environmental
exposure, qualification programs and
material identifications

Pelmor Labs, Inc.
401 Lafayette St.
Newtown, PA 18940
Phone: [phone]
Fax: [phone]
Contact: Kimberley Dempsey-Miller,
technical director
Technical service: ASTM testing; formula
development, research and application
for polymers; consultation

Bill Peltzman & Associates, Inc.
7157 S. Owens St.
Littleton, CO 80127
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Contact: Bill Peltzman, president
Technical service: Textile treating,
RFL adhesives, process development,
contamination control and resolution

Plastics Technology Laboratories
50 Pearl St.
Pittsfield, MA 01201
Phone: [phone]
Fax: [phone]
Website: www.ptli.com
Email: [e-mail]
Contact: James Galipeau, lab. mgr.
Technical service: Physical and mechanical
property testing of various elastomers
and thermoplastic elastomers--ISO
9002 certified and A2LA ISO17025
accredited

Phoenix National Laboratories, Inc.
4209 South 43rd Place
Phoenix, AZ 85040
Phone: [phone]
Fax: [phone]
Website: www.pnltest.com
Email: [e-mail]
Contact: Amy Hanks
Technical Service: Testing and inspection
services

Polymer Diagnostics Inc.
33587 Walker Rd.
Avon Lake, OH 44012
Phone: [phone]
Fax: [phone]
Website: www.polymerdiagnostics.com
Email: [e-mail]
Contact: Robert Eiden
Technical service: Polymers/rubber

Princeton Polymer Labs
521 Lehigh Ave.
Union, NJ 07083
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Contact: Dr. P. Wachtel, Pres
Technical service: Compounding, testing
and synthesis

Rexham Analytical Services
P.O. Box 1377
Matthews, NC 28106
Phone: [phone]
Fax: [phone]
Technical service: Qualitative and
quantitative analysis of elastomers, adhesives,
paints, pigments, dispersions,
coatings, solvents and plasticizers

Rubber and Plastics Technologies
5130 North Pearl St.
Schiller Park, IL 60176
Phone: [phone]
Fax: [phone]
Website:
www.rubberandplasicstechnologies.com
Email: [e-mail]
Contact: Dr. Alex Koshy
Technical Service: Analytical services
such as material characterization, both
qualitative and quantitative methods,
rubber processing testing via electrical
testing done via hi-pot tester.

Rutherford Research
89 Prospect Place
Rutherford, NJ 07070
Phone: [phone]
Contact: Dr. A.R. Blanck, president
Technical service: Research and development,
design, testing and analysis,
consulting, electrical and physical measurements,
failure analysis, testing
equipment, conductive rubber and
expert testimony

Schenck Pegasus Corp.
2890 John R. Rd.
Trey, MI 48083
Phone: [phone]
Fax: [phone]
Website:
www.schenckpegasuscorp.com
Email:
[e-mail]
Contact: Klaus Meyer, sales manager
Technical service: Material testing including
elastomer characterization, road
load simulation, component fatigue testing,
and environmental simulation,
engine and transmission testing

Scientific Laboratories, Inc.
477 Southlake Blvd.
Richmond, VA 23236
117 East 30th St.
New York, NY 10016
Phone: [phone]
Phone: [phone]
Fax: [phone]
Contact: Sue F. Brossart
Technical service: Environmental testing
laboratory

Scientific Process & Research
67 Veronica Ave.
Somerset, NJ 08873
Phone: [phone]
Fax: [phone]
Contact: Ron J. Klein, president
Technical service: Computer aided
engineering software for troubleshooting
of extrusion problems; design extruder
screws and dies for process optimization;
manufactures screws and
dies; testing and development lab

Scientific Tire Systems, Inc.
474 Barr Court
Akron, OH 44319
P.O. Box 217
Green, OH 44232
Phone: [phone]
Contact: Donald F. Avila, president
Technical service: Legal services, forensic
analysis, primarily tires and tire
products, consulting

Seal Laboratories
250 N. Nash St.
El Segundo, CA 90245
Phone: [phone]
Fax: [phone]
Website: www.seallabs.com
Email: [e-mail]
Contact: James Doi, chief chemist;
Arun Kumar, president
Technical service: Materials analysis,
failure analysis, problem solving, forensic
science in rubbers, plastics, nonmetallics
and metals (seal)

SGS U.S. Testing Company Inc.
291 Fairfield Ave.
Fairfield, NJ 07004
Phone: [phone]
Phone: [phone]
Fax: [phone]
Website: www.ustesting.sgsna.com
Email: [e-mail]
Contact: Dominick Lepore
Technical service: Mechanical, electrical,
thermal and flammability properties
testing of all kinds of elastomers,
plastics, metal, wood and stone, per
ASTM, ANSI, federal and military
specifications

Shrader Analytical & Consulting
Laboratories Inc.
3814 Vinewood
Detroit, MI 48208
Phone: [phone]
Fax: [phone]
Website: www.shraderlabs.com
Email: [e-mail]
Contact: Marianne L. Shrader
Technical service: Chemical analysis
by mass spectrometry and gas chromatography/mass
spectrometry, and
liquid chromatography and mass spectrometry

Singleton Labs, Inc.
(Subsidiary of S & ME, Inc.)
1413 Topside Rd.
Louisville, TN 37777
Phone: [phone]
Fax: [phone]
Contact: Yung C. Chung, lab director
Technical service: Chemical and physical
testing, compound analysis, simulated
environmental testing, flammability
testing, research and consulting

Skeist Inc.
375 Route 10
Whippany, NJ 07981
Phone: [phone]
Contact: Arnold Brief, vice president
Technical service: Consultants to the
polymer industries; multi-client, technoeconomic
and custom marketing studies
of polymers, monomers, plastics,
elastomers, coatings, adhesives, sealants,
films

Smithers Scientific Services
425 W. Market St.
Akron, OH 44303
Phone: [phone]
Fax: [phone]
Contact: Derek Read, client service mgr.
Technical service: Full service in rubber
from testing to consulting; compound
development, analytical, physical/mechanical
product analysis, failure
analysis and process development
  (see ad on page 69)

South Florida Test Service
17301 Okeechobee Rd.
Miami, FL 33018
Phone: [phone]
Fax: [phone]
Contact: Jack L. Martin, site manager
Technical service: Outdoor (real-time)
weathering in FL; laboratory accelerated
weathering (fluorescent, carbon-arc,
xenon-arc), instrumental color, gloss,
visual evaluation, physical, optical and
mechanical analysis, worldwide network
of 23 sites

Specialized Technology Resources,
Inc. (STR)
10 Water St.
Enfield, CT 06082
Phone: (877) str labs, ext. 312
Fax: [phone]
Website: www.strlab.com
Email: [e-mail]
Contact: Ellen Bemben
Technical service: Quality assurance
and testing services; contract R&D services;
specialty compounding; performance
modification; materials selection/evaluation;
and on-site sample
preparation

Standards Testing Labs
1845 Harsh Ave., SE.
Massillon, OH 44646
Phone: [phone]
Phone: [phone]
Fax: [phone]
Website: www.stllabs.com
Email: [e-mail];
[e-mail]
Contact: Douglas M. Garven, V.P.
Technical service: Complete tire testing,
including resiliometer, endurance,
tread separation, steer/camber angle,
cleated wheel, cut-growth, rolling resistance
and high speed; tire strength,
bead unseating, load/deflection, footprints,
profiles, hydrostatic burst, sections
and cord pulls; complete in-house
photographic/video; forensic testing,
accident reconstruction, failure analysis
and consultation; non-destructive testing
including x-ray and shearography;
designing and manufacturing of tire and
wheel testing machinery, tire sectioning
equipment, and computerized controls;
test air springs, marshmallow springs,
engine mounts, tire valves, tire repair
materials, sealants and filling materials

Stork Technimet Inc.
2345 South 170 St.
New Berlin, WI 53151
Phone: [phone]
Fax: [phone]
Website: www.storktechnimet.com
Email: [e-mail]
Contact: Jeffrey A. Jansen
Technical service: Failure analysis of
rubber, plastic and metal materials,
material identification and deformulation,
performance evaluations, contamination
analysis, quality control testing

Tritech Laboratories
1480 Englewood Ave.
Akron, OH 44305
Phone: [phone]
Fax: [phone]
Contact: John Semonin, V.P.
Technical Service: Rubber testing and
consultation on results, compound development
services, polymer training

Truesdail Laboratories, Inc.
14201 Franklin Ave.
Tustin, CA 92680
Phone: [phone]
Fax: [phone]
Contact: Bronwen J. Cleary
Technical service: Provide a wide variety
of materials testing properties, including
chemical analysis, mechanical properties,
fungus resistance, ozone exposure,
weathering, salt spray, immersion

Twin City Testing Corp.
Larry Volkmann, Area Sales Manager
662 Cromwell Ave.
St. Paul, MN 55114
Phone: (888) 645-test
Phone: [phone]
Website: www.twincitytesting.com
Email: [e-mail]
Contact: Larry Volkmann
Technical service: Laboratory testing
including: physical properties testing,
chemical analysis, environmental simulation,
etc.

VTEC Laboratories Inc.
212 Manida St.
Bronx, NY 10474
Phone: [phone]
Fax: [phone]
Website: www.vteclabs.com
Email: [e-mail]
Contact: Paul Kaplan
Technical service: Commercial testing
and research, testing: physical, structural,
flammability, combustion, toxicity,
weathering, electrical and mechanical

Western Technologies Inc.
3737 E. Broadway Rd.
Phoenix, AZ 85040
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Contact: Phillip Feliz or Edward Elnicky
Technical service: Engineering evaluation
and consultation, geotechnical
and environmental engineering, chemical
and construction materials testing
and inspection

Windsor Industrial Development
Laboratory
3310 Longfellow Ave.
Windsor, Ontario N9E 2L6
Phone: [phone]
Fax: [phone]
Website: www.widl-inc.com
Email: [e-mail]
Contact: Ben Chouchaoui, Pres.
Technical Service: Materials characterization
and design through simulation

The following grid lists the types of
testing offered by independent testing
laboratories. Tests for physical
testing of rubber include stress/strain
tests; time-dependent tests; destructive
tests; durability; electrical properties
and processing. Tests for chemical
analysis of raw materials and rubber
are broken down into spectrophotometry,
spectrometry and spectroscopy;
chromatography; thermal
analysis; and microscopy. Each of
these subdivisions is further broken
down into the specific type of tests.

                                     Physical testing of rubber

                                            Stress/strain
                                                tests

                                Tensile   Tear   Hardness   Adhesion

Akron Polymer Laboratories,
  Inc.                             *       *        *          *
Akron Rubber Development
  Lab., Inc.                       *       *        *          *
Alloy Extrusion Co.                *       *        *          *
American Standards Testing
  Bureau                           *       *        *          *
Aspen Research Corporation         *       *        *          *
Atlas Weathering Services
  Group
Bodycote Broutman                  *       *        *          *
Bodycote Materials and
  Testing                          *       *        *          *
Bowser-Morner
Buffalo Testing Laboratories,
  Inc.                             *       *        *          *
Burgess Laboratories, Inc.
Cameron Elastomer Technology       *       *        *          *
Canadian Rubber Testing and
  Dev.                             *       *        *          *
Canadian Technical Services        *       *        *          *
Carver, Inc.                               *
City Testing & Research
  Labs, Inc.                       *       *        *          *
Dek-Tron/Custom Scientific
  Instrument                       *                           *
Delsen Testing Labs. Inc.          *       *        *          *
Detroit Testing Labs, Inc.         *       *        *          *
DL Labs, Inc.                      *       *        *          *
DSET Laboratories
Eastern Laboratories, Inc.
Entela Inc.                        *       *        *          *
Experimental Services              *       *        *          *
RV Fitzsimmons & Associates,
  Inc.
Gaynes Labs Inc.                   *       *        *          *
Hauser Laboratories                *                *
Hodges Transportation/Nevada       *                *          *
Institute for Research, Inc.       *       *        *          *
International Testing
  Laboratories                     *       *        *          *
MEI-Charlton, Inc.                 *       *        *          *
Metuchen Analytical
Momentum Technologies              *       *        *          *
Nebraska Analytical Testing
  Labs
NSL Analytical Services
OCM Test Labs                      *       *        *          *
Pelmor Labs, Inc.                  *       *        *          *
Phoenix National Laboratories      *       *        *          *
Plastics Technology
  Laboratories                     *       *        *          *
Polymer Diagnostics Inc.           *       *        *          *
Princeton Polymer Labs             *       *        *          *
Rubber and Plastics
  Technologies                     *       *        *
Rutherford Research                                 *
Schenck Pegasus Corp.              *       *                   *
Scientific Laboratories Inc.
Seal Laboratories                                   *
SGS U.S. Testing Company Inc.      *       *        *          *
Shrader Analytical & Consult.
  Labs.
Singleton Labs, Inc.               *                *
Smithers Scientific Services       *       *        *          *
South Florida Test Service
Standards Testing Labs             *       *        *          *
Stork Technimet Corporation        *       *        *          *
Truesdall Laboratories, Inc.       *       *        *          *
Twin City Testing Corp.            *       *        *          *
VTEC Laboratories Inc.             *       *        *          *
Western Technologies               *       *        *          *

                                      Physical testing of rubber

                                             Time-dependent
                                                 tests

                                       Creep &     Rebound    Dynamic/
                                        stress     & resi-    thermo-
                                Set   relaxation   lience    mechanical

Akron Polymer Laboratories,
  Inc.                           *        *           *          *
Akron Rubber Development
  Lab., Inc.                     *        *           *          *
Alloy Extrusion Co.              *        *
American Standards Testing
  Bureau                         *        *           *          *
Aspen Research Corporation       *        *                      *
Atlas Weathering Services
  Group
Bodycote Broutman                *        *                      *
Bodycote Materials and
  Testing                        *        *           *          *
Bowser-Morner
Buffalo Testing Laboratories,
  Inc.
Burgess Laboratories, Inc.
Cameron Elastomer Technology     *                    *
Canadian Rubber Testing and
  Dev.                           *
Canadian Technical Services      *        *
Carver, Inc.                                                     *
City Testing & Research
  Labs, Inc.                     *        *
Dek-Tron/Custom Scientific
  Instrument                     *        *           *
Delsen Testing Labs. Inc.        *
Detroit Testing Labs, Inc.
DL Labs, Inc.
DSET Laboratories
Eastern Laboratories, Inc.
Entela Inc.                      *        *           *          *
Experimental Services            *        *           *          *
RV Fitzsimmons & Associates,
  Inc.
Gaynes Labs Inc.                 *        *                      *
Hauser Laboratories                       *
Hodges Transportation/Nevada                                     *
Institute for Research, Inc.     *        *           *          *
International Testing
  Laboratories
MEI-Charlton, Inc.               *        *           *          *
Metuchen Analytical
Momentum Technologies                                            *
Nebraska Analytical Testing
  Labs
NSL Analytical Services
OCM Test Labs                    *        *           *          *
Pelmor Labs, Inc.                *                    *
Phoenix National Laboratories    *        *           *
Plastics Technology
  Laboratories                   *                               *
Polymer Diagnostics Inc.         *        *                      *
Princeton Polymer Labs           *        *           *          *
Rubber and Plastics
  Technologies                                                   *
Rutherford Research
Schenck Pegasus Corp.
Scientific Laboratories Inc.
Seal Laboratories
SGS U.S. Testing Company Inc.    *                    *
Shrader Analytical & Consult.
  Labs.
Singleton Labs, Inc.             *
Smithers Scientific Services     *        *           *          *
South Florida Test Service
Standards Testing Labs           *
Stork Technimet Corporation      *        *                      *
Truesdall Laboratories, Inc.     *        *           *          *
Twin City Testing Corp.
VTEC Laboratories Inc.
Western Technologies

                                       Physical testing of rubber

                                              Destructive
                                                 tests

                                Crack
                                & cut                           Heat
                                growth   Abrasion   Fatigue   build-up

Akron Polymer Laboratories,
  Inc.                            *         *          *         *
Akron Rubber Development
  Lab., Inc.                      *         *          *         *
Alloy Extrusion Co.
American Standards Testing
  Bureau                          *         *          *         *
Aspen Research Corporation                  *
Atlas Weathering Services
  Group                                     *
Bodycote Broutman                 *         *          *
Bodycote Materials and
  Testing                         *         *          *
Bowser-Morner
Buffalo Testing Laboratories,
  Inc.
Burgess Laboratories, Inc.
Cameron Elastomer Technology                *
Canadian Rubber Testing and
  Dev.
Canadian Technical Services       *
Carver, Inc.
City Testing & Research
  Labs, Inc.                                *
Dek-Tron/Custom Scientific
  Instrument                                *
Delsen Testing Labs. Inc.                              *
Detroit Testing Labs, Inc.        *         *          *         *
DL Labs, Inc.                               *
DSET Laboratories
Eastern Laboratories, Inc.
Entela Inc.                       *         *          *         *
Experimental Services             *         *          *         *
RV Fitzsimmons & Associates,
  Inc.
Gaynes Labs Inc.                  *         *          *         *
Hauser Laboratories                         *          *
Hodges Transportation/Nevada      *         *          *         *
Institute for Research, Inc.                *          *
International Testing
  Laboratories                    *         *          *         *
MEI-Charlton, Inc.                *         *          *
Metuchen Analytical
Momentum Technologies
Nebraska Analytical Testing
  Labs
NSL Analytical Services
OCM Test Labs                     *         *          *
Pelmor Labs, Inc.
Phoenix National Laboratories
Plastics Technology
  Laboratories                              *
Polymer Diagnostics Inc.          *
Princeton Polymer Labs            *         *
Rubber and Plastics
  Technologies
Rutherford Research
Schenck Pegasus Corp.                                  *         *
Scientific Laboratories Inc.
Seal Laboratories
SGS U.S. Testing Company Inc.               *          *
Shrader Analytical & Consult.
  Labs.
Singleton Labs, Inc.
Smithers Scientific Services      *         *          *         *
South Florida Test Service                  *
Standards Testing Labs                      *
Stork Technimet Corporation
Truesdall Laboratories, Inc.      *         *          *         *
Twin City Testing Corp.                     *
VTEC Laboratories Inc.            *         *          *         *
Western Technologies

                                       Physical testing of rubber

                                               Durability

                                   Heat
                                resistance     Fluid
                                 (static)    resistance   Permeability

Akron Polymer Laboratories,
  Inc.                              *            *             *
Akron Rubber Development
  Lab., Inc.                        *            *             *
Alloy Extrusion Co.                 *
American Standards Testing
  Bureau                            *            *             *
Aspen Research Corporation          *            *             *
Atlas Weathering Services
  Group                             *
Bodycote Broutman                   *            *             *
Bodycote Materials and
  Testing                           *            *             *
Bowser-Morner
Buffalo Testing Laboratories,
  Inc.                              *                          *
Burgess Laboratories, Inc.
Cameron Elastomer Technology        *            *
Canadian Rubber Testing and
  Dev.                                           *
Canadian Technical Services         *            *
Carver, Inc.
City Testing & Research
  Labs, Inc.                                     *
Dek-Tron/Custom Scientific
  Instrument                                                   *
Delsen Testing Labs. Inc.           *            *
Detroit Testing Labs, Inc.          *                          *
DL Labs, Inc.                                                  *
DSET Laboratories
Eastern Laboratories, Inc.
Entela Inc.                         *            *             *
Experimental Services               *            *
RV Fitzsimmons & Associates,
  Inc.
Gaynes Labs Inc.                    *            *
Hauser Laboratories
Hodges Transportation/Nevada        *
Institute for Research, Inc.        *            *             *
International Testing
  Laboratories                                                 *
MEI-Charlton, Inc.
Metuchen Analytical
Momentum Technologies                            *             *
Nebraska Analytical Testing
  Labs
NSL Analytical Services
OCM Test Labs                       *            *             *
Pelmor Labs, Inc.                   *            *
Phoenix National Laboratories       *            *             *
Plastics Technology
  Laboratories                      *            *
Polymer Diagnostics Inc.            *            *
Princeton Polymer Labs                           *             *
Rubber and Plastics
  Technologies                      *
Rutherford Research
Schenck Pegasus Corp.
Scientific Laboratories Inc.
Seal Laboratories
SGS U.S. Testing Company Inc.       *            *             *
Shrader Analytical & Consult.
  Labs.
Singleton Labs, Inc.                *            *             *
Smithers Scientific Services        *            *             *
South Florida Test Service          *
Standards Testing Labs              *            *             *
Stork Technimet Corporation         *            *             *
Truesdall Laboratories, Inc.        *            *             *
Twin City Testing Corp.             *            *             *
VTEC Laboratories Inc.              *            *             *
Western Technologies

                                      Physical testing of rubber

                                             Durability

                                  Ozone      Weathering
                                resistance   resistance   Brittleness

Akron Polymer Laboratories,
  Inc.                              *            *             *
Akron Rubber Development
  Lab., Inc.                        *            *             *
Alloy Extrusion Co.
American Standards Testing
  Bureau                            *            *             *
Aspen Research Corporation          *            *             *
Atlas Weathering Services
  Group                                          *
Bodycote Broutman                                *
Bodycote Materials and
  Testing                           *            *             *
Bowser-Morner
Buffalo Testing Laboratories,
  Inc.
Burgess Laboratories, Inc.
Cameron Elastomer Technology
Canadian Rubber Testing and
  Dev.                                                         *
Canadian Technical Services         *                          *
Carver, Inc.
City Testing & Research
  Labs, Inc.
Dek-Tron/Custom Scientific
  Instrument                                                   *
Delsen Testing Labs. Inc.                        *             *
Detroit Testing Labs, Inc.          *            *             *
DL Labs, Inc.                                    *
DSET Laboratories                                *
Eastern Laboratories, Inc.
Entela Inc.                         *            *             *
Experimental Services               *
RV Fitzsimmons & Associates,
  Inc.
Gaynes Labs Inc.                                 *             *
Hauser Laboratories                              *
Hodges Transportation/Nevada                     *
Institute for Research, Inc.        *            *             *
International Testing
  Laboratories                      *            *             *
MEI-Charlton, Inc.                  *
Metuchen Analytical
Momentum Technologies
Nebraska Analytical Testing
  Labs                                                         *
NSL Analytical Services
OCM Test Labs                                    *             *
Pelmor Labs, Inc.
Phoenix National Laboratories       *                          *
Plastics Technology
  Laboratories
Polymer Diagnostics Inc.                         *             *
Princeton Polymer Labs                           *             *
Rubber and Plastics
  Technologies
Rutherford Research
Schenck Pegasus Corp.
Scientific Laboratories Inc.
Seal Laboratories
SGS U.S. Testing Company Inc.       *            *             *
Shrader Analytical & Consult.
  Labs.
Singleton Labs, Inc.
Smithers Scientific Services        *            *             *
South Florida Test Service                       *
Standards Testing Labs              *            *             *
Stork Technimet Corporation                      *
Truesdall Laboratories, Inc.        *            *             *
Twin City Testing Corp.             *            *             *
VTEC Laboratories Inc.              *            *
Western Technologies

                                      Physical testing of rubber

                                              Electrical
                                              properties

                                Dissipation   Dielectric   Dielectric
                                 constant      strength      factor

Akron Polymer Laboratories,
  Inc.                               *            *            *
Akron Rubber Development
  Lab., Inc.                         *            *            *
Alloy Extrusion Co.
American Standards Testing
  Bureau                             *            *            *
Aspen Research Corporation           *            *            *
Atlas Weathering Services
  Group
Bodycote Broutman
Bodycote Materials and
  Testing                            *            *            *
Bowser-Morner
Buffalo Testing Laboratories,
  Inc.
Burgess Laboratories, Inc.
Cameron Elastomer Technology
Canadian Rubber Testing and
  Dev.
Canadian Technical Services
Carver, Inc.
City Testing & Research
  Labs, Inc.
Dek-Tron/Custom Scientific
  Instrument
Delsen Testing Labs. Inc.            *            *            *
Detroit Testing Labs, Inc.
DL Labs, Inc.
DSET Laboratories
Eastern Laboratories, Inc.
Entela Inc.                          *            *            *
Experimental Services                *            *            *
RV Fitzsimmons & Associates,
  Inc.
Gaynes Labs Inc.
Hauser Laboratories
Hodges Transportation/Nevada
Institute for Research, Inc.
International Testing
  Laboratories                       *            *            *
MEI-Charlton, Inc.
Metuchen Analytical
Momentum Technologies
Nebraska Analytical Testing
  Labs
NSL Analytical Services
OCM Test Labs                                     *
Pelmor Labs, Inc.                                 *
Phoenix National Laboratories
Plastics Technology
  Laboratories                       *            *            *
Polymer Diagnostics Inc.                          *
Princeton Polymer Labs
Rubber and Plastics
  Technologies                                    *
Rutherford Research
Schenck Pegasus Corp.
Scientific Laboratories Inc.
Seal Laboratories
SGS U.S. Testing Company Inc.        *            *            *
Shrader Analytical & Consult.
  Labs.
Singleton Labs, Inc.
Smithers Scientific Services
South Florida Test Service
Standards Testing Labs
Stork Technimet Corporation
Truesdall Laboratories, Inc.
Twin City Testing Corp.                           *
VTEC Laboratories Inc.                            *
Western Technologies

                                Physical testing of rubber

                                       Processing

                                Cure rate   Extrudability

Akron Polymer Laboratories,
  Inc.                              *             *
Akron Rubber Development
  Lab., Inc.                        *             *
Alloy Extrusion Co.                 *             *
American Standards Testing
  Bureau                            *             *
Aspen Research Corporation          *             *
Atlas Weathering Services
  Group
Bodycote Broutman
Bodycote Materials and
  Testing
Bowser-Morner
Buffalo Testing Laboratories,
  Inc.
Burgess Laboratories, Inc.
Cameron Elastomer Technology        *             *
Canadian Rubber Testing and
  Dev.
Canadian Technical Services         *
Carver, Inc.                        *
City Testing & Research
  Labs, Inc.
Dek-Tron/Custom Scientific
  Instrument
Delsen Testing Labs. Inc.
Detroit Testing Labs, Inc.
DL Labs, Inc.
DSET Laboratories
Eastern Laboratories, Inc.
Entela Inc.                         *             *
Experimental Services
RV Fitzsimmons & Associates,
  Inc.
Gaynes Labs Inc.
Hauser Laboratories                               *
Hodges Transportation/Nevada
Institute for Research, Inc.                      *
International Testing
  Laboratories                      *
MEI-Charlton, Inc.
Metuchen Analytical
Momentum Technologies
Nebraska Analytical Testing
  Labs
NSL Analytical Services
OCM Test Labs                       *             *
Pelmor Labs, Inc.                   *
Phoenix National Laboratories
Plastics Technology
  Laboratories
Polymer Diagnostics Inc.            *             *
Princeton Polymer Labs              *             *
Rubber and Plastics
  Technologies                      *             *
Rutherford Research
Schenck Pegasus Corp.
Scientific Laboratories Inc.
Seal Laboratories
SGS U.S. Testing Company Inc.
Shrader Analytical & Consult.
  Labs.
Singleton Labs, Inc.
Smithers Scientific Services
South Florida Test Service
Standards Testing Labs
Stork Technimet Corporation
Truesdall Laboratories, Inc.        *             *
Twin City Testing Corp.
VTEC Laboratories Inc.
Western Technologies

                                      Chemical analysis of raw
                                        materials and rubber

                                      Spectrophotometry, spec-
                                      trometry & spectroscopy

                                           Ultraviolet       Mass
                                Infrared    & visible    spectrometry

Akron Polymer Laboratories,
  Inc.                             *                          *
Akron Rubber Development
  Lab., Inc.                       *            *             *
Alloy Extrusion Co.
American Standards Testing
  Bureau                           *            *             *
Aspen Research Corporation         *            *             *
Atlas Weathering Services
  Group                            *            *
Bodycote Broutman                  *
Bodycote Materials and
  Testing                          *            *             *
Bowser-Morner                      *
Buffalo Testing Laboratories,
  Inc.                             *
Burgess Laboratories, Inc.         *
Cameron Elastomer Technology
Canadian Rubber Testing and
  Dev.
Canadian Technical Services
Carver, Inc.                       *
City Testing & Research
  Labs, Inc.
Dek-Tron/Custom Scientific
  Instrument
Delsen Testing Labs. Inc.
Detroit Testing Labs, Inc.         *
DL Labs, Inc.                      *            *
DSET Laboratories
Eastern Laboratories, Inc.         *            *             *
Entela Inc.                        *            *             *
Experimental Services
RV Fitzsimmons & Associates,
  Inc.                             *            *             *
Gaynes Labs Inc.
Hauser Laboratories                *            *             *
Hodges Transportation/Nevada
Institute for Research, Inc.       *            *             *
International Testing
  Laboratories                     *            *             *
MEI-Charlton, Inc.                 *            *
Metuchen Analytical                *            *             *
Momentum Technologies              *            *
Nebraska Analytical Testing
  Labs                             *            *
NSL Analytical Services                                       *
OCM Test Labs                      *            *
Pelmor Labs, Inc.
Phoenix National Laboratories
Plastics Technology
  Laboratories                     *            *
Polymer Diagnostics Inc.           *            *             *
Princeton Polymer Labs             *            *
Rubber and Plastics
  Technologies                     *
Rutherford Research
Schenck Pegasus Corp.
Scientific Laboratories Inc.
Seal Laboratories                  *
SGS U.S. Testing Company Inc.      *            *             *
Shrader Analytical & Consult.
  Labs.                                                       *
Singleton Labs, Inc.               *            *
Smithers Scientific Services       *            *             *
South Florida Test Service         *            *
Standards Testing Labs
Stork Technimet Corporation        *
Truesdall Laboratories, Inc.       *            *             *
Twin City Testing Corp.            *            *             *
VTEC Laboratories Inc.             *            *
Western Technologies

                                        Chemical analysis of raw
                                          materials and rubber

                                  Spectrophotometry,
                                   spectrometry &          Chromato-
                                    spectroscopy            graphy

                                              Flame
                                 Nuclear    emission/
                                magnetic      atomic
                                resonance   absorption    Gas   Liquid

Akron Polymer Laboratories,
  Inc.                              *           *          *      *
Akron Rubber Development
  Lab., Inc.                                    *          *      *
Alloy Extrusion Co.
American Standards Testing
  Bureau                            *           *          *      *
Aspen Research Corporation          *           *          *      *
Atlas Weathering Services
  Group
Bodycote Broutman                               *          *      *
Bodycote Materials and
  Testing                                       *          *      *
Bowser-Morner                                   *
Buffalo Testing Laboratories,
  Inc.                                          *          *
Burgess Laboratories, Inc.                      *          *
Cameron Elastomer Technology
Canadian Rubber Testing and
  Dev.
Canadian Technical Services
Carver, Inc.
City Testing & Research
  Labs, Inc.
Dek-Tron/Custom Scientific
  Instrument
Delsen Testing Labs. Inc.                                         *
Detroit Testing Labs, Inc.
DL Labs, Inc.
DSET Laboratories
Eastern Laboratories, Inc.                                 *      *
Entela Inc.                         *           *          *      *
Experimental Services
RV Fitzsimmons & Associates,
  Inc.                                          *          *      *
Gaynes Labs Inc.
Hauser Laboratories                 *           *          *      *
Hodges Transportation/Nevada
Institute for Research, Inc.        *           *          *      *
International Testing
  Laboratories                      *           *          *      *
MEI-Charlton, Inc.                              *          *
Metuchen Analytical                                        *      *
Momentum Technologies
Nebraska Analytical Testing
  Labs                                          *          *      *
NSL Analytical Services                         *
OCM Test Labs                                   *                 *
Pelmor Labs, Inc.
Phoenix National Laboratories
Plastics Technology
  Laboratories
Polymer Diagnostics Inc.            *           *          *      *
Princeton Polymer Labs                                     *      *
Rubber and Plastics
  Technologies
Rutherford Research
Schenck Pegasus Corp.
Scientific Laboratories Inc.                    *          *      *
Seal Laboratories                                          *
SGS U.S. Testing Company Inc.                              *      *
Shrader Analytical & Consult.
  Labs.                                                    *      *
Singleton Labs, Inc.                            *                 *
Smithers Scientific Services        *           *          *
South Florida Test Service
Standards Testing Labs
Stork Technimet Corporation
Truesdall Laboratories, Inc.
Twin City Testing Corp.                         *          *      *
VTEC Laboratories Inc.              *           *          *      *
Western Technologies

                                     Chemical analysis of raw
                                       materials and rubber

                                               Thermal
                                              analysis

                                              Differen-    Differen-
                                                tial         tial
                                  Thermo-      thermal     scanning
                                gravimetric   analysis    calorimetry

Akron Polymer Laboratories,
  Inc.                               *            *            *
Akron Rubber Development
  Lab., Inc.                         *            *            *
Alloy Extrusion Co.
American Standards Testing
  Bureau                             *            *            *
Aspen Research Corporation           *            *            *
Atlas Weathering Services
  Group
Bodycote Broutman                    *            *            *
Bodycote Materials and
  Testing                            *            *            *
Bowser-Morner
Buffalo Testing Laboratories,
  Inc.
Burgess Laboratories, Inc.           *            *            *
Cameron Elastomer Technology         *            *            *
Canadian Rubber Testing and
  Dev.
Canadian Technical Services
Carver, Inc.
City Testing & Research
  Labs, Inc.
Dek-Tron/Custom Scientific
  Instrument
Delsen Testing Labs. Inc.            *                         *
Detroit Testing Labs, Inc.           *                         *
DL Labs, Inc.
DSET Laboratories
Eastern Laboratories, Inc.           *                         *
Entela Inc.                          *            *            *
Experimental Services
RV Fitzsimmons & Associates,
  Inc.                               *            *            *
Gaynes Labs Inc.
Hauser Laboratories                  *                         *
Hodges Transportation/Nevada
Institute for Research, Inc.         *            *            *
International Testing
  Laboratories                       *            *            *
MEI-Charlton, Inc.
Metuchen Analytical                                            *
Momentum Technologies
Nebraska Analytical Testing
  Labs                               *            *            *
NSL Analytical Services
OCM Test Labs                        *            *            *
Pelmor Labs, Inc.
Phoenix National Laboratories
Plastics Technology
  Laboratories                       *            *            *
Polymer Diagnostics Inc.             *                         *
Princeton Polymer Labs               *            *            *
Rubber and Plastics
  Technologies                       *
Rutherford Research
Schenck Pegasus Corp.
Scientific Laboratories Inc.
Seal Laboratories                    *                         *
SGS U.S. Testing Company Inc.        *            *            *
Shrader Analytical & Consult.
  Labs.
Singleton Labs, Inc.
Smithers Scientific Services         *            *            *
South Florida Test Service
Standards Testing Labs
Stork Technimet Corporation          *                         *
Truesdall Laboratories, Inc.
Twin City Testing Corp.              *                         *
VTEC Laboratories Inc.               *            *            *
Western Technologies

                                Chemical analysis of raw
                                  materials and rubber

                                      Microscopy

                                  Optical   Electron

Akron Polymer Laboratories,
  Inc.                               *         *
Akron Rubber Development
  Lab., Inc.                         *         *
Alloy Extrusion Co.
American Standards Testing
  Bureau                             *         *
Aspen Research Corporation           *         *
Atlas Weathering Services
  Group                              *
Bodycote Broutman                    *         *
Bodycote Materials and
  Testing                            *
Bowser-Morner                        *         *
Buffalo Testing Laboratories,
  Inc.                               *         *
Burgess Laboratories, Inc.           *         *
Cameron Elastomer Technology         *
Canadian Rubber Testing and
  Dev.
Canadian Technical Services
Carver, Inc.
City Testing & Research
  Labs, Inc.                         *         *
Dek-Tron/Custom Scientific
  Instrument
Delsen Testing Labs. Inc.            *
Detroit Testing Labs, Inc.           *         *
DL Labs, Inc.                        *
DSET Laboratories
Eastern Laboratories, Inc.
Entela Inc.                          *         *
Experimental Services
RV Fitzsimmons & Associates,
  Inc.                               *         *
Gaynes Labs Inc.
Hauser Laboratories                  *         *
Hodges Transportation/Nevada
Institute for Research, Inc.         *         *
International Testing
  Laboratories                       *         *
MEI-Charlton, Inc.                   *         *
Metuchen Analytical                  *         *
Momentum Technologies                *
Nebraska Analytical Testing
  Labs                               *
NSL Analytical Services                        *
OCM Test Labs                        *         *
Pelmor Labs, Inc.
Phoenix National Laboratories
Plastics Technology
  Laboratories
Polymer Diagnostics Inc.             *         *
Princeton Polymer Labs               *
Rubber and Plastics
  Technologies                       *
Rutherford Research
Schenck Pegasus Corp.
Scientific Laboratories Inc.                   *
Seal Laboratories                    *         *
SGS U.S. Testing Company Inc.        *
Shrader Analytical & Consult.
  Labs.                              *
Singleton Labs, Inc.                 *
Smithers Scientific Services         *         *
South Florida Test Service           *
Standards Testing Labs
Stork Technimet Corporation          *         *
Truesdall Laboratories, Inc.
Twin City Testing Corp.              *         *
VTEC Laboratories Inc.               *
Western Technologies