ASTM-D1439 › Historical Revision Information
Standard Test Methods for Sodium Carboxymethylcellulose
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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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see 15.1 and 20.
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.
Keywords
degree of etherification; density; moisture; purity; rotational viscometer; sodium carboxymethylcellulose; sodium chloride; sodium glycolate; viscosity;
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Document Number
ASTM-D1439-15
Revision Level
2015 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
Feb. 1, 2016
Document Type
Test Method
Page Count
9 pages
Committee Number
D01.36