ASTM D1278-91a(2007)

    Standard Test Methods for Rubber from Natural Sources—Chemical Analysis

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    1. Scope

    1.1 These test methods cover the sampling and chemical analysis of solid natural rubber in the forms supplied to the rubber industry.

    1.2 The analytical procedures appear in the following order:

    Sampling 5
    Volatile Matter 6-8
    Ash 14-17
    Copper (Referee Colorimetric Method) 18-22
    Copper (Alternative Colorimetric Method) 23-27
    Copper (Alternative Flame Atomic Absorption Method)28
    Manganese (Colorimetric Method)29-33
    Manganese (Alternative Flame Atomic Absorption Method) 34
    Iron (Colorimetric Method) 35-39
    Acetone Extract 40-41
    Rubber Hydrocarbon 42-43
    Nitrogen 44-45

    1.3 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.

    1.4 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.

    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

    D297 Test Methods for Rubber ProductsChemical Analysis

    D1193 Specification for Reagent Water

    D1485 Practice for Rubber from Natural SourcesSampling and Sample Preparation

    D3533 Test Method for Rubber--Nitrogen Content

    D4004 Test Methods for Rubber--Determination of Metal Content by Flame Atomic Absorption (AAS) Analysis

    D4483 Practice for Evaluating Precision for Test Method Standards in the Rubber and Carbon Black Manufacturing Industries

    E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves

    E131 Terminology Relating to Molecular Spectroscopy

    ICS Code

    ICS Number Code 83.040.10 (Latex and raw rubber)

    UNSPSC Code

    UNSPSC Code 13101500(Natural rubber)

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

    DOI: 10.1520/D1278-91AR07

    Citation Format

    ASTM D1278-91a(2007), Standard Test Methods for Rubber from Natural Sources—Chemical Analysis, ASTM International, West Conshohocken, PA, 2007,

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