ASTM D 5070 : 1990 : R2014
Current
The latest, up-to-date edition.
Standard Test Method for Synthetic Quaternary Ammonium Salts in Fabric Softeners by Potentiometric Titrations (Withdrawn 2023)
Hardcopy , PDF
English
25-02-2014
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 |
4
|
| ProductNote |
Reconfirmed 2014
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Current
|
| Supersedes |
1.1This 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.
1.2The quaternary ammonium salts conform to the structures shown in Fig. 1 and Fig. 2.
1.3The 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 |
1.4The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5This 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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