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  • ASTM
    C471M-20ae1 Standard Test Methods for Chemical Analysis of Gypsum and Gypsum Products (Metric)
    Edition: 2020
    $113.57
    Unlimited Users per year

Description of ASTM-C471M 2020

ASTM C471M-20ae1

Historical Standard: Standard Test Methods for Chemical Analysis of Gypsum and Gypsum Products (Metric)




ASTM C471M

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.


Keywords

ammonium acetate method; atomic absorption; chemical analysis; coulometric method; flame photometry; gas chromatography/electron capture detector; gas chromatography/mass spectrometry; gypsum; gypsum board; gypsum concrete; gypsum products; high-performance liquid chromatography/UV detector; plaster; sand in set plaster; sulfur (S8); wood-fiber plaster ;


ICS Code

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


DOI: 10.1520/C0471M-20AE01

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ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide.

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