ASTM C471M-16a

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

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 The 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 for Calcium Sulfate by  
19  
Ammonium Acetate Method  
Alternative Procedure for Analysis for Sodium Chloride by  
20  
the Coulometric Method  
Determination of Sand in Set Plaster  
21  
Wood-Fiber Content in Wood-Fiber Gypsum Plaster  
22  
Optional Procedure for Analysis for Sodium by the Atomic  
23  
Absorption Method  
Optional Procedure for Analysis for Sodium by Flame  
24  
Photometry  
Determination of Orthorhombic Cyclooctasulfur (S8) in  
25  
Ggypsum Panel Products—General Provisions  
Determination of Orthorhombic Cyclooctasulfur (S8) in  
26  
Gypsum Panel Products by Gas Chromatograph  
Equipped with a Mass Spectrometer (GS/MS)  
Determination of Orthorhombic Cyclooctasulfur (S8) in  
27  
Gypsum Panel Products by Gas Chromatograph  
Equipped with an Electron Capture Detector (GC/ECD)  
Determination of Orthorhombic Cyclooctasulfur (S8) in  
28  
Gypsum Panel Products by High-performance Liquid  
Chromatograph Equipped with and Ultraviolet Detector  
(HPLC/UV)  
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.

General Information

• Status: Historical
• Publication Date: 14-Jun-2016
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C11 - Gypsum and Related Building Materials and Systems
• Drafting Committee: C11.01 - Specifications and Test Methods for Gypsum Products

Relations

• Replaces: ASTM C471M-16 - Standard Test Methods for Chemical Analysis of Gypsum and Gypsum Products (Metric)
• Effective Date: 15-Jun-2016
• Replaced By: ASTM C471M-17 - Standard Test Methods for Chemical Analysis of Gypsum and Gypsum Products (Metric)
• Effective Date: 01-Jun-2017
• Referred By: ASTM D8155-17 - Standard Practice for Shake Extraction of Solid Mining and Metallurgical Processing Waste with Water
• Effective Date: 15-Jun-2016
• Referred By: ASTM C59/C59M-00(2020) - Standard Specification for Gypsum Casting Plaster and Gypsum Molding Plaster
• Effective Date: 15-Jun-2016
• Referred By: ASTM C61/C61M-00(2020) - Standard Specification for Gypsum Keene's Cement
• Effective Date: 15-Jun-2016
• Referred By: ASTM C452-21 - Standard Test Method for Potential Expansion of Portland-Cement Mortars Exposed to Sulfate
• Effective Date: 15-Jun-2016
• Referred By: ASTM C35-01(2019) - Standard Specification for Inorganic Aggregates for Use in Gypsum Plaster
• Effective Date: 15-Jun-2016
• Referred By: ASTM E3355-23 - Standard Guide for Characterization of Coal Combustion Products (CCPs) in Storage Area(s) for Beneficial Use
• Effective Date: 15-Jun-2016
• Referred By: ASTM C22/C22M-00(2021) - Standard Specification for Gypsum
• Effective Date: 15-Jun-2016
• Referred By: ASTM C1396/C1396M-17 - Standard Specification for Gypsum Board
• Effective Date: 15-Jun-2016
• Referred By: ASTM C563-20 - Standard Guide for Approximation of Optimum SO<inf>3</inf> in Hydraulic Cement
• Effective Date: 15-Jun-2016
• Referred By: ASTM D3987-12(2020) - Standard Practice for Shake Extraction of Solid Waste with Water
• Effective Date: 15-Jun-2016
• Referred By: ASTM C28/C28M-10(2020) - Standard Specification for Gypsum Plasters
• Effective Date: 15-Jun-2016

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C471M − 16a
Standard Test Methods for
Chemical Analysis of Gypsum and Gypsum Products
1
(Metric)
This standard is issued under the fixed designation C471M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 These test methods cover the chemical analysis of
responsibility of the user of this standard to establish appro-
gypsum and gypsum panel products, including gypsum ready-
priate safety and health practices and determine the applica-
mixed plaster, gypsum wood-fibered plaster, and gypsum
bility of regulatory limitations prior to use.
concrete.
1.2 The test methods appear in the following order:
2. Referenced Documents
Sections
2
2.1 ASTM Standards:
Preparation of Sample 4
C11 Terminology Relating to Gypsum and Related Building
Complete Procedure 5–16
Alternative Procedure for Analysis of Free Water in 17
Materials and Systems
Gypsum Using a Moisture Balance
C22/C22M Specification for Gypsum
Alternative Procedure for Analysis of Combined Water in 18
Gypsum Using a Moisture Balance C28/C28M Specification for Gypsum Plasters
Alternative Procedure for Analysis for Calcium Sulfate by 19
C59 Specification for Gypsum Casting Plaster and Gypsum
Ammonium Acetate Method
Molding Plaster
Alternative Procedure for Analysis for Sodium Chloride by 20
the Coulometric Method C61 Specification for Gypsum Keene’s Cement
Determination of Sand in Set Plaster 21
C317/C317M Specification for Gypsum Concrete
Wood-Fiber Content in Wood-Fiber Gypsum Plaster 22
C778 Specification for Standard Sand
Optional Procedure for Analysis for Sodium by the Atomic 23
Absorption Method C842 Specification forApplication of Interior Gypsum Plas-
Optional Procedure for Analysis for Sodium by Flame 24
ter
Photometry
D1193 Specification for Reagent Water
Determination of Orthorhombic Cyclooctasulfur (S )in 25
8
Ggypsum Panel Products—General Provisions D1428 Test Method for Test for Sodium and Potassium In
Determination of Orthorhombic Cyclooctasulfur (S )in 26
8
Water and Water-Formed Deposits by Flame Photometry
Gypsum Panel Products by Gas Chromatograph
3
(Withdrawn 1989)
Equipped with a Mass Spectrometer (GS/MS)
Determination of Orthorhombic Cyclooctasulfur (S )in 27
D2013 Practice for Preparing Coal Samples for Analysis
8
Gypsum Panel Products by Gas Chromatograph
E11 Specification for Woven Wire Test Sieve Cloth and Test
Equipped with an Electron Capture Detector (GC/ECD)
Sieves
Determination of Orthorhombic Cyclooctasulfur (S )in 28
8
Gypsum Panel Products by High-performance Liquid
Chromatograph Equipped with and Ultraviolet Detector
3. Terminology
(HPLC ⁄UV)
3.1 Definitions—Definitions shall be in accordance with
1.3 The text of this standard references notes and footnotes
Terminology C11.
that provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered 3.2 Definitions:
3.2.1 calibration standard, n—a chemical mixture contain-
as requirements of the standard.
ing a known quantity of the analyte used to relate the measured
1.4 The values stated in SI units are to be regarded as the
analytical signal to the concentration of the analyte.
standard.
3.2.2 dried sample, n—a sample devoid of free water.
1
These test methods are under the jurisdiction of ASTM Committee C11 on
2
Gypsum and Related Building Materials and Systems and are the direct responsi- For referenced ASTM standards, visit the ASTM website, www.astm.org, or
bility of Subcommittee C11.01 on Specifications and Test Methods for Gypsum contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Products. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved June 15, 2016. Published July 2016. Originally the ASTM website.
3
approved in 1961. Last previous edition approved in 2016 as C471M – 16. DOI: The last approved version of this historical standard is referenced on
10.1520/C0471M-16A. www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C471M − 16a
3.2.3 internal standard, n—a chemical used in the quantifi- 4.4 Gypsum Casting and Molding Plaster,(C59)—Reduce
cationofS bymonitoringandadjustingforminorvariancesin the dried sample in accordance with 4.1.5. Thoroughly blend
8
instrument performance. and rehydrate the specimen in
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C471M − 16 C471M − 16a
Standard Test Methods for
Chemical Analysis of Gypsum and Gypsum Products
1
(Metric)
This standard is issued under the fixed designation C471M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. 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 The test methods appear in the following order:
Sections
Preparation of Sample 4
Complete Procedure 5 – 16
Alternative Procedure for Analysis of 17
Free Water in Gypsum Using a Mois-
ture Balance
Alternative Procedure for Analysis of 18
Combined Water in Gypsum Using a
Moisture Balance
Alternative Procedure for Analysis for 19
Calcium Sulfate by Ammonium Acetate
Method
Alternative Procedure for Analysis for 20
Sodium Chloride by the Coulometric
Method
Determination of Sand in Set Plaster 21
Wood-Fiber Content in Wood-Fiber Gyp- 22
sum Plaster
Optional Procedure for Analysis for So- 23
dium by the Atomic Absorption Method
Optional Procedure for Analysis for So- 24
dium by Flame Photometry
Determination of Orthorhombic Cyclooc- 25
tasulfur (S ) in Ggypsum Panel
8
Products—General Provisions
Determination of Orthorhombic Cyclooc- 26
tasulfur (S ) in Gypsum Panel Prod-
8
ucts by Gas Chromatograph Equipped
with a Mass Spectrometer (GS/MS)
Determination of Orthorhombic Cyclooc- 27
tasulfur (S ) in Gypsum Panel Prod-
8
ucts by Gas Chromatograph Equipped
with an Electron Capture Detector
(GC/ECD)
Determination of Orthorhombic Cyclooc- 28
tasulfur (S ) in Gypsum Panel Prod-
8
ucts by High-performance Liquid Chro-
matograph Equipped with and
Ultraviolet Detector (HPLC/UV)
Sections
Preparation of Sample 4
Complete Procedure 5 – 16
Alternative Procedure for Analysis of Free Water in 17
Gypsum Using a Moisture Balance
1
These test methods are under the jurisdiction of ASTM Committee C11 on Gypsum and Related Building Materials and Systems and are the direct responsibility of
Subcommittee C11.01 on Specifications and Test Methods for Gypsum Products.
Current edition approved Jan. 1, 2016June 15, 2016. Published January 2016July 2016. Originally approved in 1961. Last previous edition approved in 20142016 as
C471 – 14.C471M – 16. DOI: 10.1520/C0471M-16.10.1520/C0471M-16A.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C471M − 16a
Alternative Procedure for Analysis of Combined Water in 18
Gypsum Using a Moisture Balance
Alternative Procedure for Analysis for Calcium Sulfate by 19
Ammonium Acetate Method
Alternative Procedure for Analysis for Sodium Chloride by 20
the Coulometric Method
Determination of Sand in Set Plaster 21
Wood-Fiber Content in Wood-Fiber Gypsum Plaster 22
Optional Procedure for Analysis for Sodium by the Atomic 23
Absorption Method
Optional Procedure for Analysis for Sodium by Flame 24
Photometry
Determination of Orthorhombic Cyclooctasulfur (S ) in 25
8
Ggypsum Panel Products—General Provisions
Determination of Orthorhombic Cyclooctasulfur (S ) in 26
8
Gypsum Panel Products by Gas Chromatograph
Equipped with a Mass Spectrometer (GS/MS)
Determination of Orthorhombic Cyclooctasulfur (S ) in 27
8
Gypsum Panel Products by Gas Chromatograph
Equipped with an Electron Capture Detector (GC/ECD)
Determination of Orthorhombic Cyclooctasulfur (S ) in 28
8
Gypsum Panel Products by High-performance Liquid
Chromatograph Equipped with and Ultraviolet Detector
(HPLC ⁄UV)
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
2
2.1 ASTM Standards:
C11 Terminology Relating to Gypsum and Related Building Ma
...