Scope
1.1 These test methods cover the chemical analysis of gypsum and gypsum panel products, including gypsum ready-mixed plaster, gypsum wood-fibered plaster, and gypsum concrete.
1.2 These test methods appear in the following order:
Sections
Preparation of Sample
4
Complete Procedure
5 – 16
Alternative Procedure for Analysis of Free Water in
17
Gypsum Using a Moisture Balance
Alternative Procedure for Analysis of Combined Water in
18
Gypsum Using a Moisture Balance
Alternative Procedure for Analysis of Organic Material
19
and Carbon Dioxide in Gypsum by High Temperature
Weight Loss
Alternative Procedure for Analysis for Calcium Sulfate by
20
Ammonium Acetate Method
Alternative Procedure for Analysis for Sodium Chloride by
21
the Coulometric Method
Determination of Sand in Set Plaster
22
Wood-fiber Content in Wood-fiber Gypsum Plaster
23
Optional Procedure for Analysis for Sodium by the Atomic
24
Absorption Method
Optional Procedure for Analysis for Sodium by Flame
25
Photometry
Determination of Orthorhombic Cyclooctasulfur (S8) in
26
Ggypsum Panel Products—General Provisions
Determination of Orthorhombic Cyclooctasulfur (S8) in
27
Gypsum Panel Products by Gas Chromatograph
Equipped with a Mass Spectrometer (GS/MS)
Determination of Orthorhombic Cyclooctasulfur (S8) in
28
Gypsum Panel Products by Gas Chromatograph
Equipped with an Electron Capture Detector (GC/ECD)
Determination of Orthorhombic Cyclooctasulfur (S8) in
29
Gypsum Panel Products by High-performance Liquid
Chromatograph Equipped with and Ultraviolet Detector
(HPLC/UV)
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in these test methods.
1.4 These text of this test method 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.
1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
