ASTM D4251-89(2016) PDF

Scope: 1.1 This test method describes a potentiometric titration procedure for determining the anionic active matter in detergents. It is intended for the analysis of anionic surfactants such as detergent range alkylbenzenesulfonates, α-olefin sulfonates, alcohol sulfates, and alcohol ethosulfates. It has not been tested for surfactant formulations. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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. Material Safety Data Sheets are available for reagents and materials. Review them for hazards prior to usage.

ASTM D4251-89(2016) Referenced Document

ASTM D1193 Standard Specification for Reagent Water
ASTM D1681 Standard Test Method for Synthetic Anionic Active Ingredient in Detergents by Cationic Titration Procedure
ASTM D3049 Standard Test Method for Synthetic Anionic Ingredient by Cationic Titration
ASTM D459 Standard Terminology Relating to Soaps and Other Detergents
ASTM E180 Standard Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals

2016 ASTM D4251-89(2016) Standard Test Method for Active Matter in Anionic Surfactants by Potentiometric Titration
1989 ASTM D4251-89(2009) Standard Test Method for Active Matter in Anionic Surfactants by Potentiometric Titration
1989 ASTM D4251-89(2003) Standard Test Method for Active Matter in Anionic Surfactants by Potentiometric Titration
1995 ASTM D4251-89(1995)e1 Standard Test Method for Active Matter in Anionic Surfactants by Potentiometric Titration