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  • ASTM
    D5070-90(2014) Standard Test Method for Synthetic Quaternary Ammonium Salts in Fabric Softeners by Potentiometric Titrations
    Edition: 2014
    $144.00
    Unlimited Users per year

Description of ASTM-D5070 2014

ASTM D5070-90-Reapproved2014

Withdrawn Standard: Standard Test Method for Synthetic Quaternary Ammonium Salts in Fabric Softeners by Potentiometric Titrations (Withdrawn 2023)




ASTM D5070

Scope

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 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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. See 6.4, 6.6, 6.7 and Section 8 for specific warning statements.


Keywords


ICS Code

ICS Number Code 71.060.50 (Salts)


DOI: 10.1520/D5070-90R14



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