ASTM D1439-22

Standard Test Methods for Sodium Carboxymethylcellulose

SIGNIFICANCE AND USE
5.1 Moisture analysis (along with purity) is used to calculate the amount of active polymer in the material and must be considered when determining the amount of sodium carboxymethylcellulose to use in various formulations.
SCOPE
1.1 These test methods cover the testing of sodium carboxymethylcellulose.  
1.2 The test procedures appear in the following order:    
Sections  
Moisture  
4 – 9  
Degree of Etherification:  
Test Method A—Acid Wash  
10 – 17  
Test Method B—Nonaqueous Titration  
10, 12, 18 – 23  
Viscosity  
24 – 29  
Purity  
30 – 37  
Sodium Glycolate  
38 – 46  
Sodium Chloride  
47 – 54  
Density  
55 – 61  
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.4 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. For specific hazard statements, see 15.1 and 20.  
1.5 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.

General Information

• Status: Published
• Publication Date: 30-Nov-2022
• ICS: 85.040 - Pulps
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.36 - Cellulose and Cellulose Derivatives

Standards Content (Sample)

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.
Designation: D1439 − 22
Standard Test Methods for
1
Sodium Carboxymethylcellulose
This standard is issued under the fixed designation D1439; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* E1Specification for ASTM Liquid-in-Glass Thermometers
1.1 These test methods cover the testing of sodium car-
3. Purity of Reagents
boxymethylcellulose.
3.1 Reagent grade chemicals shall be used in all tests.
1.2 The test procedures appear in the following order:
Unlessotherwiseindicated,itisintendedthatallreagentsshall
Sections
conform to the specifications of the Committee on Analytical
Moisture 4–9
4
Reagents of the American Chemical Society, where such
Degree of Etherification:
Test Method A—Acid Wash 10–17
specifications are available. Other grades may be used, pro-
Test Method B—Nonaqueous Titration 10, 12, 18–23
vided it is first ascertained that the reagent is of sufficiently
Viscosity 24–29
Purity 30–37 high purity to permit its use without lessening the accuracy of
Sodium Glycolate 38–46
the determination.
Sodium Chloride 47–54
Density 55–61
3.2 Unless otherwise indicated, references to water shall be
understood to mean distilled water.
1.3 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
MOISTURE
only.
1.4 This standard does not purport to address all of the
4. Scope
safety concerns, if any, associated with its use. It is the
4.1 Thistestmethodcoversthedeterminationofthevolatile
responsibility of the user of this standard to establish appro-
content of sodium carboxymethylcellulose.
priate safety, health, and environmental practices and deter-
4.2 The results of this test are used for calculating the total
mine the applicability of regulatory limitations prior to use.
For specific hazard statements, see 15.1 and 20. solids in the sample; and, by common usage, all materials
volatile at this test temperature are designated as moisture.
1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard-
5. Significance and Use
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
5.1 Moistureanalysis(alongwithpurity)isusedtocalculate
mendations issued by the World Trade Organization Technical
the amount of active polymer in the material and must be
Barriers to Trade (TBT) Committee.
consideredwhendeterminingtheamountofsodiumcarboxym-
ethylcellulose to use in various formulations.
2. Referenced Documents
2
2.1 ASTM Standards:
6. Apparatus
D1347 Test Methods for Methylcellulose (Withdrawn
6.1 Oven—Gravityconvectionoven,capableofmaintaining
3
2003)
a temperature of 105°C 6 3°C.
6.2 Weighing Bottles, low-form, 50-mm inside diameter by
1
These test methods are under the jurisdiction of ASTM Committee D01 on
30-mm height, or equivalent.
Paint and Related Coatings, Materials, and Applications and are the direct
responsibility of Subcommittee D01.36 on Cellulose and Cellulose Derivatives. 6.3 Analytical Balance.
Current edition approved Dec. 1, 2022. Published December 2022. Originally
approved in 1956. Last previous edition approved in 2022 as D1439–15 (2022).
DOI: 10.1520/D1439-22.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or ACS Reagent Chemicals, Specifications and Procedures for Reagents and
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standard-Grade Reference Materials, American Chemical Society, Washington,
Standards volume information, refer to the standard’s Document Summary page on DC. For suggestions on the testing of reagents not listed by theAmerican Chemical
the ASTM website. Society, see Analar Standards for Laboratory Chemicals, BDH Ltd., Poole, Dorset,
3
The last approved version of this historical standard is referenced on U.K., and the United States Pharmacopeia and National Formulary, U.S. Pharma-
www.astm.org. copeial Convention, Inc. (USPC), Rockville, MD.
*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

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D1439 − 22
7. Procedure 13. Apparatus
7.1 Weigh 3g to5gofthe sample to the nearest 0.001 g in 13.1 Stirrer, air-driven.
a tared and covered weighing bottle.
13.2 Buchner Funnel, 75mm, fitted with a 70mm fine-
7.2
...

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: D1439 − 15 (Reapproved 2022) D1439 − 22
Standard Test Methods for
1
Sodium Carboxymethylcellulose
This standard is issued under the fixed designation D1439; 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 Scope*
1.1 These test methods cover the testing of sodium carboxymethylcellulose.
1.2 The test procedures appear in the following order:
Sections
Moisture 4 – 9
Degree of Etherification:
Test Method A—Acid Wash 10 – 17
Test Method B—Nonaqueous Titration 10, 12, 18 – 23
Viscosity 24 – 29
Purity 30 – 37
Sodium Glycolate 38 – 46
Sodium Chloride 47 – 54
Density 55 – 61
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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. For specific hazard statements, see 15.1 and 20.
1.5 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.
2. Referenced Documents
2
2.1 ASTM Standards:
3
D1347 Test Methods for Methylcellulose (Withdrawn 2003)
E1 Specification for ASTM Liquid-in-Glass Thermometers
3. Purity of Reagents
3.1 Reagent grade chemicals shall be used in all tests. Unless otherwise indicated, it is intended that all reagents shall conform
1
These test methods are under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and are the direct responsibility of
Subcommittee D01.36 on Cellulose and Cellulose Derivatives.
Current edition approved June 1, 2022Dec. 1, 2022. Published June 2022December 2022. Originally approved in 1956. Last previous edition approved in 20152022 as
D1439 – 15.D1439 – 15 (2022). DOI: 10.1520/D1439-15R22.10.1520/D1439-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on 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 ----------------------
D1439 − 22
4
to the specifications of the Committee on Analytical Reagents of the American Chemical Society, where such specifications are
available. Other grades may be used, provided it is first ascertained that the reagent is of sufficiently high purity to permit its use
without lessening the accuracy of the determination.
3.2 Unless otherwise indicated, references to water shall be understood to mean distilled water.
MOISTURE
4. Scope
4.1 This test method covers the determination of the volatile content of sodium carboxymethylcellulose.
4.2 The results of this test are used for calculating the total solids in the sample; and, by common usage, all materials volatile at
this test temperature are designated as moisture.
5. Significance and Use
5.1 Moisture analysis (along with purity) is used to calculate the amount of active polymer in the material and must be considered
when determining the amount of sodium carboxymethylcellulose to use in various formulations.
6. Apparatus
6.1 Oven—Gravity convection oven, capable of maintaining a temperature of 105105 °C 6 3 °C.
6.2 Weighing Bottles, low-form, 50-mm inside diameter by 30-mm height, or equivalent.
6.3 Analytical Balance.
7. Procedure
7.1 Weigh 33 g to 5 g of the sample to the nearest 0.001 g in a tared and covered weighing bottle.
7.2 Place the bottle in an oven at 105 °C for 2 h with the cover removed. Cool the bottle in a desiccator, replace the cover, and
weigh.
7.3 Replace the sample in the oven for 30 min, cool, and reweigh.
7.4 Continue this procedure to a mass loss of not more than
...