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    ASTM D3673 - 89(2009)

    Standard Test Methods for Chemical Analysis of Alpha Olefin Sulfonates

    Active Standard ASTM D3673 | Developed by Subcommittee: D12.12

    Book of Standards Volume: 15.04

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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. Scope

    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 Method4-8
    Sodium Sulfate 9-14
    Neutral Oil15-19
    Chlorides Calculated as Sodium Chloride (NaCl)20-24
    pH30 and 31
    Determination of Color32-37
    Determination of Active Content by Methylene Blue Titration38-47

    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.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    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 Code

    ICS Number Code 71.080.99 (Other organic chemicals)

    UNSPSC Code

    UNSPSC Code 12352107(Organic salts or its substitutes); 12161900(Surfactants)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D3673-89R09

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM D3673-89(2009), Standard Test Methods for Chemical Analysis of Alpha Olefin Sulfonates, ASTM International, West Conshohocken, PA, 2009,

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