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Significance and Use
This method is suitable as a quality control test for the measurement of color in alpha olefin sulfonates.
1.1 These test methods cover the chemical analysis of alpha olefin sulfonates. The analytical procedures appear in the following order:
|Moisture by the Distillation Method||4-8|
|Chlorides Calculated as Sodium Chloride (NaCl)||20-24|
|pH||30 and 31|
|Determination of Color||32-37|
|Determination of Active Content by Methylene Blue Titration||38-47|
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. For specific precaution statement see 36.1. Material safety data sheets are available for reagents and materials. Review them for hazards prior to usage. 32.1 This method covers the measurement of color in alpha olefin sulfonates using the platinum-cobalt scale and the Klett-Summerson colorimeter. 32.2 The instrument is calibrated each day with dilutions of Platinum-Cobalt Color Standard (No. 500 APHA). The Pt-Co value for the sample is determined from the calibration curve for the Klett instrument.
32.1 This method covers the measurement of color in alpha olefin sulfonates using the platinum-cobalt scale and the Klett-Summerson colorimeter.
32.2 The instrument is calibrated each day with dilutions of Platinum-Cobalt Color Standard (No. 500 APHA). The Pt-Co value for the sample is determined from the calibration curve for the Klett instrument.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1172 Guide for pH of Aqueous Solutions of Soaps and Detergents
D1193 Specification for Reagent Water
D1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)
D3049 Test Method for Synthetic Anionic Ingredient by Cationic Titration
ICS Number Code 71.080.99 (Other organic chemicals)
UNSPSC Code 12352107(Organic salts or its substitutes); 12161900(Surfactants)
ASTM D3673-89(2009), Standard Test Methods for Chemical Analysis of Alpha Olefin Sulfonates, ASTM International, West Conshohocken, PA, 2009, www.astm.orgBack to Top