Pellet moisture sensors get ASTM approval.Pellet moisture analyzers that employ relative-humidity sensing technology are now approved under a new standard adopted by Philadelphia-based ASTM ASTM abbr. American Society for Testing and Materials in late 2005. That's the word from Arizona Instruments LLC (Logical Link Control) See "LANs" under data link protocol. LLC - Logical Link Control , Tempe, Ariz., whose Computrac Vapor Pro is an example of this type of instrument, which provides fast, safe, and cost-effective moisture analysis Moisture analysis covers a variety of methods for measuring moisture content in both high level and trace amounts in solids, liquids, or gases. Moisture in percentage amounts is monitored as a specification in commercial food production. . ASTM approval and standardization of this test method helps processors who use it for quality control, especially if they ever become involved in product-liability issues. Prior to adoption of ASTM D7191-05, "Standard Test Method for Determination of Moisture in Plastics by Relative Humidity relative humidity n. The ratio of the amount of water vapor in the air at a specific temperature to the maximum amount that the air could hold at that temperature, expressed as a percentage. Sensor," Karl Fisher "wet" titration titration (tītrā`shən), gradual addition of an acidic solution to a basic solution or vice versa (see acids and bases); titrations are used to determine the concentration of acids or bases in solution. was the only approved method for moisture specific testing of plastics. The latter requires extensive training, expensive glassware, and ongoing costs for chemical reagents and disposal fees. Relative-humidity instruments eliminate all those concerns and are usable both on the production floor and in the laboratory. Arizona Instruments: (602)470-1414 * PT Direct: 943XV [ILLUSTRATION OMITTED] |
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