The impact resistance of thermoplastic pipe and fittings relates to suitability for service and to quality of processing. Impact resistance may also provide a relative measure of a material's resistance to breakage during handling and installation and, for non-buried applications, to in-service breakage. See Appendix X4 for guidelines for selecting testing combinations.

Results obtained by use of this test method can be used in three ways:

As the basis for establishing impact test requirements in product standards,

To measure the effect of changes in materials or processing, and

To measure the effect of the environment.

1. Scope

1.1 This test method covers the determination of the impact resistance of thermoplastic pipe and fittings under specified conditions of impact by means of a tup (falling weight). Three interchangeable striking noses are used on the tup, differing in geometrical configuration. Two specimen holders are described.

1.2 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.

1.3 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

D2122 Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings

Keywords

fittings; impact resistance; pipe; thermoplastic; tup (falling weight); Impact resistance--plastics; Impact testing--pipeline coatings; Falling weight test; Thermoplastic pipe/tube/fittings; Tup (falling weight) ;

ICS Code

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

Citing ASTM Standards

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