ASTM D6875 - 18

    Standard Test Method for Solidification Point of Industrial Organic Chemicals by Thermistor

    Active Standard ASTM D6875 | Developed by Subcommittee: D16.04

    Book of Standards Volume: 06.04

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    Significance and Use

    5.1 This test method may be used for process control during the manufacture of organic chemicals described in Section 1, for setting specifications, for development and research work, and to determine if contamination was introduced during shipment.

    1. Scope

    1.1 This test method covers a general procedure for determining the solidification point of most organic chemicals having appreciable heats of fusion and solidification points between 4 and 41°C.

    Note 1: Other test methods for determining freeze point and solidification point of aromatic hydrocarbons include Test Methods D852, D1015, D1016, D3799, D4493, and D6269.

    1.2 This test method is applicable to relatively pure compounds only. Solidification point depression is dependent on impurity concentrations.

    1.3 The following applies to all specified limits in this test method: for purposes of determining conformance with applicable specifications using this test method, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right hand digit used in expressing the specification limit, in accordance with the “rounding-off method” of Practice E29.

    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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see Section 8, Hazards.

    1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    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

    D852 Test Method for Solidification Point of Benzene

    D1015 Test Method for Freezing Points of High-Purity Hydrocarbons

    D1016 Test Method for Purity of Hydrocarbons from Freezing Points

    D3437 Practice for Sampling and Handling Liquid Cyclic Products

    D3438 Practice for Sampling and Handling Naphthalene, Maleic Anhydride, and Phthalic Anhydride

    D3799 Test Method for Purity of Styrene by Freezing Point Method

    D3852 Practice for Sampling and Handling Phenol, Cresols, and Cresylic Acid

    D4297 Practice for Sampling and Handling Bisphenol A(4,4 -Isopropylidinediphenol)

    D4493 Test Method for Solidification Point of Bisphenol A(4,4-Isopropylidenediphenol)

    D6269 Test Method for Solidification Point of p-Xylene

    D6809 Guide for Quality Control and Quality Assurance Procedures for Aromatic Hydrocarbons and Related Materials

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    ICS Code

    ICS Number Code 71.080.01 (Organic chemicals in general)

    UNSPSC Code

    UNSPSC Code 32121610(Thermistor)

    Referencing This Standard
    Link Here
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    DOI: 10.1520/D6875-18

    Citation Format

    ASTM D6875-18, Standard Test Method for Solidification Point of Industrial Organic Chemicals by Thermistor, ASTM International, West Conshohocken, PA, 2018,

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