Bsi bs en 00715 1995 (1999) bs 2782 11 mtd 1123g 1995

www bzfxw com BRITISH STANDARD BS EN 715 1995 BS 2782 11 Method 1123G 1995 Thermoplastics piping systems — End load bearing joints between small diameter pressure pipes and fittings — Test method for[.]

BS 2782-11: Method 1123G:1995

Thermoplastics piping

systems —

End-load-bearing joints

between small diameter

pressure pipes and

fittings —

Test method for

leaktightness under

internal water

pressure, including end

thrust

The European Standard EN 715:1994 has the status of a

British Standard

UDC 621.643.4-036:621.643.2.06-98:620.165.29

BS EN 715:1995

This British Standard, having

been prepared under the

direction of the Sector Board for

Materials and Chemicals, was

published under the authority

of the Standards Board and

comes into effect on

15 June 1995

© BSI 10-1999

The following BSI references

relate to the work on this

standard:

Committee reference PRI/61

Draft for comment 92/41355 DC

ISBN 0 580 23968 3

Committees responsible for this British Standard

The preparation of this British Standard was entrusted to Technical Committee PRI/61, Plastics piping systems and components, upon which the following bodies were represented:

British Gas plc British Plastics Federation British Plumbing Fittings Manufacturers’ Association British Valve and Actuator Manufacturers’ Association Department of the Environment (British Board of Agrément) Department of the Environment (Building Research Establishment) Department of the Environment (Property and Buildings Directorate) Department of Transport

Electricity Association Federation of Civil Engineering Contractors Health and Safety Executive

Institute of Building Control Institute of Materials Institution of Civil Engineers Institution of Gas Engineers Institution of Water and Environmental Management National Association of Plumbing, Heating and Mechanical Services Contractors

Pipeline Industries Guild Plastics Land Drainage Manufacturers’ Association Society of British Gas Industries

Society of British Water Industries Water Companies Association Water Services Association of England and Wales The following bodies were also represented in the drafting of the standard, through subcommittees and panels:

ERA Technology Ltd

Engineering Equipment and Materials Users’ Association RAPRA Technology Ltd

Amendments issued since publication

Amd No Date Comments

© BSI 10-1999 i

Contents

Page

BS EN 715:1995

National foreword

This British Standard has been prepared by Technical Committee PRI/61 and is

the English language version of EN 715:1994 Thermoplastics piping systems —

End-load-bearing joints between small diameter pressure pipes and fittings — Test method for leaktightness under internal water pressure, including end thrust, published by the European Committee for Standardization (CEN).

It is incorporated into BS 2782 Methods of testing plastics —

Part 11 Thermoplastics pipes, fittings and valves, as Method 1123G:1995, for

association with related test methods for plastics materials and plastics piping components

This test method has been prepared for reference by other standards under preparation by CEN for specification of plastics piping systems and components

It has been implemented to enable experience of the method to be gained and for use for other fresh applications

It is also for use for the revision or amendment of other national standards as practicable, but it should not be presumed to apply to any existing standard or specification which contains or makes reference to a different test method until that standard/specification has been amended or revised to make reference to this method and adjust any requirements as appropriate

WARNING This British Standard does not necessarily detail all the precautions necessary to meet the requirements of the Health and Safety at Work etc Act 1974 Attention should be paid to any appropriate safety precautions and the method should be operated only by trained personnel

A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application

Compliance with a British Standard does not of itself confer immunity from legal obligations.

Summary of pages

This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 4 and a back cover

This standard has been updated (see copyright date) and may have had amendments incorporated This will be indicated in the amendment table on the inside front cover

EUROPÄISCHE NORM January 1994

UDC 621.643.4-036:621.643.2.06-98:620.165.29

Descriptors: Pipelines, pressure pipes, plastic pipes, tubes, pipe fittings, joining, joints, adhesive bonded, fluid-tightness tests,

leaktightness, pressure tests

English version

Thermoplastics piping systems — End-load-bearing joints between small diameter pressure pipes and fittings — Test method for leaktightness under internal water pressure,

including end thrust

Systèmes de canalisations thermoplastiques —

Assemblages avec effet de fond entre tubes de

petit diamètre avec pression et raccords —

Méthode d’essai d’étanchéité avec pression

d’eau interne avec effet de fond

Rohrleitungssysteme aus Thermoplasten — Zugfeste Verbindungen zwischen Druckrohren und Formstücken mit kleinen

Durchmessern — Prüfverfahren für die Dichtigkeit unter Innendruck mittels Wasser und unter Axialbeanspruchung

This European Standard was approved by CEN on 1994-01-10 CEN members

are bound to comply with the CEN/CENELEC Internal Regulations which

stipulate the conditions for giving this European Standard the status of a

national standard without any alteration

Up-to-date lists and bibliographical references concerning such national

standards may be obtained on application to the Central Secretariat or to any

CEN member

This European Standard exists in three official versions (English, French,

German) A version in any other language made by translation under the

responsibility of a CEN member into its own language and notified to the

Central Secretariat has the same status as the official versions

CEN members are the national standards bodies of Austria, Belgium,

Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,

Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and

United Kingdom

CEN

European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung

Central Secretariat: rue de Stassart 36, B-1050 Brussels

© 1994 Copyright reserved to CEN members

Ref No EN 715:1994 E

EN 715:1994

© BSI 10-1999

2

Foreword

This standard was prepared by CEN/TC 155,

Plastics piping systems and ducting systems It

received approval from the CEN members

on 1993-09-16

This standard is based on the International

Standard ISO 3458:1976 Assembled joints between

fittings and polyethylene (PE) pressure pipes — Test

of leakproofness under internal pressure, prepared

by the International Organization for

Standardization (ISO) It is a modification of

ISO 3458:1976 for reasons of applicability to other

plastics materials, other sizes, and/or other test

conditions and alignment with texts of other

standards on test methods

The modifications are:

— no material is mentioned;

— test parameters, except those common to all

plastics, are omitted;

— the diameter limit is extended from 63 mm

to 90 mm;

— no material-dependent requirements are

given;

— editorial changes have been introduced

The material-dependent parameters and/or

performance requirements are incorporated in the

system standard(s) concerned

No existing European Standard is superseded by

this standard

This standard is one of a series of standards on test

methods which support system standards for

plastics piping systems and ducting systems

This European Standard shall be given the status of

a national standard, either by publication of an

identical text or by endorsement, at the latest by

July 1994, and conflicting national standards shall

be withdrawn at the latest by July 1994

The Standard was approved and in accordance with

the CEN/CENELEC Internal Regulations, the

following countries are bound to implement this

European Standard: Austria, Belgium, Denmark,

Finland, France, Germany, Greece, Iceland,

Ireland, Italy, Luxembourg, Netherlands, Norway,

Portugal, Spain, Sweden, Switzerland,

United Kingdom

1 Scope

This standard specifies a method for testing

the leaktightness of end-load-bearing joints,

e.g cemented joints and assembled joints (excluding

fusion-welded joints), between mechanical fittings

and thermoplastics pipes under internal water

pressure, including end thrust, of diameters up to

and including 90 mm

The method is applicable regardless of the design

and material of the fitting used for jointing pipes

2 Principle

The leaktightness of an assembled joint is checked

while the joint is subjected to an internal test

pressure greater than the nominal pressure for

which the pipe is rated with the pieces joined subject

to the longitudinal force induced by the hydrostatic

end thrust

NOTE 1 It is assumed that the following test parameters are

set by the standard making reference to this standard:

a) the free length, L, of the pipe(s) in the test assembly

(see clause 4 and Figure 1);

b) the test temperature, T, in degrees Celsius (see clause 6);

c) the test pressure, p, in bar (see 3.1 and clause 6);

d) the time under pressure, t, in minutes (see clause 6);

e) the maximum diameter to which this test can be applied.

NOTE 2 The purpose of the original test given in ISO 3458 was

to provide for a short-term (1 h) test at a pressure which exceeded

the nominal pressure (PN) of the pipe under test For pipes of

nominal diameter up to 63 mm, the test pressure was three

times PN.

3 Apparatus

WARNING It is necessary to take account of the

consequences of failure of the components under

pressure and to contain the test piece or apparatus

accordingly

A typical apparatus is shown in Figure 1

3.1 Pressure source, connected to the test piece,

e.g as shown in Figure 1, capable of maintaining

the specified internal water pressure to an accuracy

of ± 2 %;

3.2 Pressure measuring device, capable of checking

conformance of the test pressure with 3.1 Figure 1 — Diagram of typical apparatus

EN 715:1994

4 Test piece

The test piece shall consist of an assembly of (a)

pipe-section(s) and fitting(s) including at least one

joint of the type to be tested The pipe-sections shall

be of the size and type for which the joint(s) is (are)

designed

The components for the test piece shall not be

assembled until at least 24 h after their production

The free length, L, of each pipe in the test assembly

shall be a minimum of 300 mm

One end of the test piece shall be connected to the

pressure source The other end(s) shall be sealed off

in such a way that, when the test pressure is

applied, longitudinal stresses are exerted within

each pipe wall by the water pressure acting on the

end fittings

The assembly of the joint shall be carried out in

accordance with the manufacturer’s instructions

5 Procedure

Fill the test piece with water at the specified test

temperature, T, ± 2 °C.

Ensure that all air is removed and excluded from

the test piece for the remainder of the procedure

Secure the test piece to the apparatus

Wait at least 20 min for equalization of

temperature

Ensure that the outside of the test piece is

completely dry

Apply pressure at a steady rate so as to achieve the

specified test pressure, p, in (30 ± 5) s.

Maintain the specified temperature, T, within ± 2 °C, and pressure, p, within ± 2 %, while

monitoring the apparatus for any indication of a loss

of pressure and the test piece for any signs of

leakage for the specified time, t, or until prior failure

as follows:

a) terminate the test and record the observations

if during the period, t, the pressure cannot be

maintained and the losses occurred at the joint,

or within a distance of one pipe diameter from the joint under test;

b) repeat the test if the pipe(s) fail(s) at a position further than one diameter from the joint(s) under test

6 Test report

The test report shall include the following information:

a) a reference to this standard and to the referring standard;

b) the identity of the components [e.g fitting, pipe(s)] comprising the joint under test and their measured dimensions;

c) the free length, L, in millimetres;

d) the test temperature, T, in degrees Celsius;

e) the test pressure, p, in bars;1) f) the time under pressure, t, in minutes;

g) a report of any signs of leakage observed and of the pressure at which any such leakage occurred

or, if no leakage was observed, a declaration that the joint did not leak;

h) any factors which may have affected the results, such as any incidents or any operating details not specified in this standard;

i) the date of test

1) 1 bar = 10 5 N/m 2

blank

BS EN

715:1995

BS 2782-11:

Method

1123G:1995

BSI

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