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    ASTM E676 - 02(2012)

    Standard Specification for Interchangeable Taper-Ground Joints

    Active Standard ASTM E676 | Developed by Subcommittee: E41.01

    Book of Standards Volume: 14.04

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    Abstract

    This specification covers the required properties of only the ground surfaces of interchangeable taper-ground joints used in laboratory and industrial equipment in full-length, medium length, short length, and international length grindings. It includes information on the testing method for the products. After testing, samples should conform to the required quality of surface finish, taper, and leakage for the specific joint size designation.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers designations, dimensions, and tolerances for only the ground surfaces of interchangeable taper-ground joints for laboratory and industrial equipment in full-length, medium-length, short-length, and international-length (ISO K-6 series) grindings.

    Note 1—The dimensions pertaining to full-length, medium-length, and short-length joints, other than for the tolerance on length of grind, were taken directly from the now obsolete Commercial Standard CS 21.
    Note 2—Tolerances on the diameters of the international-length joints do not agree with those given in ISO Recommendation R 383. These tolerances have been established to agree with those of CS 21 in order to prevent the negative projection (large end of inner joint being smaller than large end of outer joint) permitted by ISO.
    Note 3—Although glass is the most commonly used material for ground joints, other materials may be used as specified. Taper-ground joints constructed from glass should be of suitable chemical and thermal properties in accordance with Specification E438. Joints should be as free as possible of visible defects and conform to Specification E671.

    1.2 The following precautionary caveat pertains only to the Test Method portion, Section 4, 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

    E438 Specification for Glasses in Laboratory Apparatus

    E671 Specification for Maximum Permissible Thermal Residual Stress in Annealed Glass Laboratory Apparatus

    E920 Specification for Commercially Packaged Laboratory Apparatus

    E921 Specification for Export Packaged Laboratory Apparatus

    E1133 Practice for Performance Testing of Packaged Laboratory Apparatus for United States Government Procurements

    E1157 Specification for Sampling and Testing of Reusable Laboratory Glassware

    ICS Code

    ICS Number Code 71.040.20 (Laboratory ware and related apparatus)

    UNSPSC Code

    UNSPSC Code

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

    DOI: 10.1520/E0676-02R12

    Citation Format

    ASTM E676-02(2012), Standard Specification for Interchangeable Taper-Ground Joints, ASTM International, West Conshohocken, PA, 2012, www.astm.org

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