ISO 8533:2019 ガラス繊維強化熱硬化性プラスチック（GRP）パイプおよびフィッティング—セメントまたはラップジョイントの設計を証明するための試験方法 | ページ 2

Foreword

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This document was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 6, Reinforced plastics pipes and fittings for all applications.

This second edition cancels and replaces the first edition ISO 8533:2003, which has been technically revised. It also incorporates the Amendment ISO 8533:2003/Amd1:2012. The main changes compared to the previous edition are as follows:

• changed the Scope to mention that the test procedure is a destructive test and that the bending test is limited up to DN 600;
• changed the Scope to cover the proof of structural design of cemented or wrapped joints;
• the Terms and definitions clause was added to this document;
• changed testing sequences from mandatory to recommended;
• modified test sequence for the proof of the design, Clause 9;
• changes in Table 1 with modified testing sequences for the proof of the design of cemented or wrapped joints;
• modification of bending test sequence;
• addition of an alternative bending test (Method B).

Introduction

In a pipework system, pipes and fittings of different nominal pressures and nominal stiffness may be used. A joint may be made between pipes and/or fittings and should be designed such that its performance is equal to or better than the requirements of the pipeline, but not necessarily of the components being joined.

The requirements for the assembly of the joint are not included in this document, but they should be in accordance with the manufacturer’s recommendations.

The material-dependent parameters and/or performance requirements are stated in the referring standard.

1 Scope

This document specifies methods of test for cemented or wrapped joints for buried and above ground glass-reinforced thermosetting plastics (GRP) piping systems. This document is only applicable to the joint and covers methods of test to prove its design. It assumes that the joint either is or is not intended to be subject to the effects of hydrostatic end thrust.

The tests detailed in 9.2, 9.4 to 9.6 inclusive are applicable to cemented or wrapped joints intended to be used in buried or above-ground applications. The bending tests detailed in 9.3 can be used to prove the design where joints are either intended to be used in buried applications or are intended to be used in particular above-ground situations where the tests may be considered appropriate.

With the exception of procedure detailed in 9.3, these test procedures are applicable to joints for pipes and fittings of all nominal sizes. The tests detailed in 9.3 are applicable to joints for pipes and fittings up to and including DN 600. The tests are applicable for evaluating joints intended for applications conveying liquids at temperatures specified in the referring standards.

The test procedures in this document are damaging to the test piece, which will not be suitable for reuse after these tests. The test procedure is applied for type testing purposes only.

This document is applicable only to the joint and specifies methods of test to prove its design.

2 Normative references

There are no normative references in this document.

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses: