Significance and Use

This test method covers the determination of calcium sulfate in gypsum and gypsum products by extraction with ammonium acetate solution.

1. Scope

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.

1.2 The test methods appear in the following order:

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.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

C11 Terminology Relating to Gypsum and Related Building Materials and Systems

C22/C22M Specification for Gypsum

C28/C28M Specification for Gypsum Plasters

C59 Specification for Gypsum Casting Plaster and Gypsum Molding Plaster

C61 Specification for Gypsum Keenes Cement

C317/C317M Specification for Gypsum Concrete

C842 Specification for Application of Interior Gypsum Plaster

D1193 Specification for Reagent Water

D1428 Test Method for Test for Sodium and Potassium In Water and Water-Formed Deposits by Flame Photometry

D2013 Practice for Preparing Coal Samples for Analysis

E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves

Keywords

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 Code

ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)

DOI: 10.1520/C0471M-01R12

ASTM International is a member of CrossRef.

ASTM C471M