ASTM A1056 - 12

    Standard Specification for Cast Iron Couplings Used for Joining Hubless Cast Iron Soil Pipe and Fittings

    Active Standard ASTM A1056 | Developed by Subcommittee: A04.75

    Book of Standards Volume: 01.02


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    ASTM A1056

    1. Scope

    1.1 This specification covers the materials and testing of cast iron couplings for joining hubless cast iron soil pipe and fittings for sizes 11/2 to 10 in.

    1.2 It is the purpose of this specification to furnish information as to the characteristics of a particular sleeve type coupling when applied to cast iron soil pipe and fittings manufactured in accordance with Specification A888, latest revision, and CISPI Designation 301, latest revision.

    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 The following precautionary caveat pertains only to the test method portion, Section 8, of this specification. 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

    A48/A48M Specification for Gray Iron Castings

    A644 Terminology Relating to Iron Castings

    A888 Specification for Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain, Waste, and Vent Piping Applications

    C564 Specification for Rubber Gaskets for Cast Iron Soil Pipe and Fittings

    D2240 Test Method for Rubber Property--Durometer Hardness

    E8 Test Methods for Tension Testing of Metallic Materials

    ANSI Standards

    ANSIB18.1.2 Square and Hex Nuts (Inch Series)

    CISPI Standard

    CISPI-301 Specification for Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain, Waste and Vent Piping Applications


    ICS Code

    ICS Number Code 23.040.60 (Flanges, couplings and joints)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/A1056-12

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