ASTM International - ASTM C1789-13
Standard Test Method for Use and Calibration of Hand-Held Moisture Meters on Gypsum Panels
| Organization: | ASTM International |
| Publication Date: | 1 December 2013 |
| Status: | inactive |
| Page Count: | 8 |
| ICS Code (Cement. Gypsum. Lime. Mortar): | 91.100.10 |
significance And Use:
5.1 This Standard Test Method is intended for use in calibrating hand-held meters to accurately read from approximately 30% to 90% ERH. Moisture content is related to the ERH or water activity of... View More
scope:
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.
1.2 This test method applies to the field use of hand-held moisture meters at storage and distribution facilities, construction job sites and in buildings.
1.3 This test method has not been evaluated for the influence of paint or wall covering materials on the indicated moisture content of a gypsum board or panel substrate.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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