Thermoplastics pipes for the conveyance of fluids. Determination of the slow cracking resistance of pipes and fittings using the Notched Ring Test (NRT)

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-11-2012

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Test specimen
7 Procedure
8 Test report
Annex A (informative) - On-set slow cracking time detection
Annex B (informative) - Stress intensity factor plot
Annex C (informative) - Flexure load estimation
Bibliography

Defines the slow cracking resistance of pipes and fittings using the Notched Ring Test (NRT) which is a method for determining the slow crack resistance of thermoplastics resins and compounds in pipe form and/or finished products (e.g. pipes and fittings) from which a ring specimen can be cut and notched.

This Technical Specification determines the slow cracking resistance of pipes and fittings using the Notched Ring Test (NRT) which is a method for determining the slow crack resistance of thermoplastics resins and compounds in pipe form and/or finished products (e.g. pipes and fittings) from which a ring specimen can be cut and notched. The test is performed under sustained constant loading in a test medium at a specified temperature and the time to the on-set of slow cracking is measured. This method applies to the rings from pipes or fittings having a wall thickness greater than 5mm. This Technical Specification specifies the method of testing using notched ring specimens directly obtained from pipes or fittings.

Committee	PRI/88/4
DevelopmentNote	Reviewed and confirmed by BSI, May 2016. (05/2016)
DocumentType	Standard
Pages	30
PublisherName	British Standards Institution
Status	Current

Standards	Relationship
ISO/TS 16479:2012	Identical

ISO 6108:1978	Double equal angle cutters with plain bore and key drive
ISO 13479:2009	Polyolefin pipes for the conveyance of fluids Determination of resistance to crack propagation Test method for slow crack growth on notched pipes

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PD ISO/TS 16479:2012

Thermoplastics pipes for the conveyance of fluids. Determination of the slow cracking resistance of pipes and fittings using the Notched Ring Test (NRT)

Table of Contents

Abstract

Scope

General Product Information

International Equivalents

Standards Referencing This Book

Category

Subcategory