ASTM E1118 / E1118M - 11

    Standard Practice for Acoustic Emission Examination of Reinforced Thermosetting Resin Pipe (RTRP)

    Active Standard ASTM E1118 / E1118M | Developed by Subcommittee: E07.04

    Book of Standards Volume: 03.03


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    Significance and Use

    The AE examination method detects damage in RTRP. The damage mechanisms detected in RTRP are as follows: resin cracking, fiber debonding, fiber pullout, fiber breakage, delamination, and bond or thread failure in assembled joints. Flaws in unstressed areas and flaws which are structurally insignificant will not generate AE.

    This practice is convenient for on-line use under operating conditions to determine structural integrity of in-service RTRP usually with minimal process disruption.

    Flaws located with AE should be examined by other techniques; for example, visual, ultrasound, and dye penetrant, and may be repaired and retested as appropriate. Repair procedure recommendations are outside the scope of this practice.

    1. Scope

    1.1 This practice covers acoustic emission (AE) examination or monitoring of reinforced thermosetting resin pipe (RTRP) to determine structural integrity. It is applicable to lined or unlined pipe, fittings, joints, and piping systems.

    1.2 This practice is applicable to pipe that is fabricated with fiberglass and carbon fiber reinforcements with reinforcing contents greater than 15 % by weight. The suitability of these procedures must be demonstrated before they are used for piping that is constructed with other reinforcing materials.

    1.3 This practice is applicable to tests below pressures of 35 MPa absolute [5000 psia].

    1.4 This practice is limited to pipe up to and including 0.6 m [24 in.] in diameter. Larger diameter pipe can be examined with AE, however, the procedure is outside the scope of this practice.

    1.5 This practice applies to examinations of new or in-service RTRP.

    1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

    1.7 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 to determine the applicability of regulatory limitations prior to use. For more specific safety precautionary information see 8.1.


    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

    D883 Terminology Relating to Plastics

    E543 Specification for Agencies Performing Nondestructive Testing

    E650 Guide for Mounting Piezoelectric Acoustic Emission Sensors

    E750 Practice for Characterizing Acoustic Emission Instrumentation

    E976 Guide for Determining the Reproducibility of Acoustic Emission Sensor Response

    E1316 Terminology for Nondestructive Examinations

    E2075 Practice for Verifying the Consistency of AE-Sensor Response Using an Acrylic Rod

    ASNT Standards

    ASNTSNT-TC-1A Personnel Qualification and Certification in Nondestructive Testing


    ICS Code

    ICS Number Code 23.040.20 (Plastic pipes)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/E1118_E1118M-11

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