ASTM-C471M › Standard Test Methods for Chemical Analysis of Gypsum and Gypsum Products (Metric)
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1.1 These test methods cover the chemical analysis of gypsum and gypsum products, including gypsum ready-mixed plaster, gypsum wood-fibered plaster and gypsum concrete.
Note 1—Gypsum reference standard materials, prepared by Domtar, Inc are available through Brammer Standards Company, Inc.
1.2 The test methods appear in the following order:
|Alternative Procedure for Analysis for Calcium Sulfate by Ammonium Acetate Method||17-22|
|Alternative Procedure for Analysis for Sodium Chloride by the Coulometric Method||23-29|
|Determination of Sand in Set Plaster||30-36|
|Optional Procedure for Analysis for Sodium by Flame Photometry||47-54|
|Optional Procedure for Analysis for Sodium by the Atomic Absorption Method||40-46|
|Preparation of Sample||4|
|Wood-Fiber Content in Wood-Fiber Gypsum Plaster||37-39|
1.3 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
1.4 The values stated in SI units are to be regarded as the standard.
1.5 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.
ammonium acetate method; atomic absorption; chemical analysis; coulometric method; flame photometry; gypsum; gypsum concrete; gypsum board; gypsum products; plaster; sand in set plaster; wood-fiber plaster; ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
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