ASTM D2122 - 98(2010)

    Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings

    Active Standard ASTM D2122 | Developed by Subcommittee: F17.40

    Book of Standards Volume: 08.04


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    ASTM D2122

    Significance and Use

    This test method provides for determining the physical dimensions of thermoplastic pipe and fittings. This test method is suitable for determination of dimensional compliance with product specifications.

    1. Scope

    1.1 This test method covers the determination of diameter, wall thickness, and length dimensions of thermoplastic pipe. Included are procedures for measurement of the inside diameter of pipe intended to be joined by internal fittings, measurement of the average outside diameter for roundable pipe where out-of-roundness is not of primary concern, out-of-roundness measurement and measurement of the average outside diameter of non-roundable pipe, and for determining length and straightness.

    1.2 This test method also includes procedures for dimensioning molded thermoplastic pipe fittings.

    1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    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

    D618 Practice for Conditioning Plastics for Testing

    D638 Test Method for Tensile Properties of Plastics

    D790 Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials

    F412 Terminology Relating to Plastic Piping Systems

    F1498 Specification for Taper Pipe Threads 60 for Thermoplastic Pipe and Fittings

    ANSI Standard

    B2.1 Pipe Threads (Except Dryseal)


    ICS Code

    ICS Number Code 23.040.20 (Plastic pipes); 23.040.45 (Plastic fittings)

    UNSPSC Code

    UNSPSC Code 40171500(Commercial pipe and piping)


    DOI: 10.1520/D2122-98R10

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