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ASTM C1789-14
- Standard Test Method for Calibration of Hand-Held Moisture Meters on Gypsum Panels
- standard by ASTM International, 06/01/2014
- Publisher: ASTM
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1.1 This test method applies to the calibration of handheld moisture meters for gypsum board, glass faced gypsum panels and fiber-reinforced gypsum panels by means of electrical conductance and dielectric meters. The test uses wetted test specimens which are dried down in at least 5 steps to determine the moisture content based on the weight loss in comparison to the dry weight. The test also supplies the ERH values for each of the drying steps.