ASTM D 5070 : 1990 : R2005
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Method for Synthetic Quaternary Ammonium Salts in Fabric Softeners by Potentiometric Titrations
Hardcopy , PDF
11-11-2014
English
01-05-2005
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL. 15.04, 2014 Outlines a potentiometric titration procedure for the determination of quaternary ammonium salts in fabric softeners.
| Committee |
D 12
|
| DocumentType |
Test Method
|
| Pages |
5
|
| ProductNote |
Reconfirmed 2005
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
1.1 This test method describes a potentiometric titration procedure for the determination of quaternary ammonium salts in fabric softeners. This test method is intended for the analysis of known quaternary ammonium salts such as the dialkyl dimethyl quaternary ammonium compound type and the diamidoamine based quaternary ammonium compound type.
1.2 The quaternary ammonium salts conform to the structures shown in Fig.1 and Fig. 2.
1.3 The analytical procedure appears in the following order:
| Section | |
| Apparatus | 5 |
| Reagents | 6 |
| Preparation of standard reagents | 7 |
| Standardization of hyamine solution | 9 |
| Safety precautions | 8 |
| Procedure for determination of dialkyl dimethyl quaternaries | 10 |
| Procedure for determination of diamidoamine based quaternaries | 11 |
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. See 6.4, 6.6, 6.7 and Section 8 for specific warning statements.
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