National foreword

This British Standard is the official English language version of EN 13274‑1:2001.

The UK participation in its preparation was entrusted by Technical eommittee PH/4, Respiratory protection, to Subcommittee PH/4/9, Test methods, which has the responsibility to:

aid enquirers to understand the text;
present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed;
monitor related international and European developments and promulgate them in the UK.

A list of organizations represented on this subcommittee can be obtained on request to its secretary.

Cross-references

The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards eatalogue under the section entitled "rnternational Standards eorrespondence rndex", or by using the "Find" facility of the BSI Standards Electronic eatalogue.

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.

This British Standard, having been prepared under the direction of the Health and Environment Sector eommittee, was published under the authority of the Standards eommittee and comes into effect on 15 March 2001

Summary of pages

This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 28, an inside back cover and a back cover.

The BSI copyright date displayed in this document indicates when the document was last issued.

This European Standard was approved by CEN on 1 January 2001.

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 Management Centre 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 Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

Foreword

This European Standard has been prepared by Technical Committee CEN/TC 79, Respiratory protective devices, the Secretariat of which is held by DIN.

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 2001, and conflicting national standards shall be withdrawn at the latest by July 2001.

This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s).

For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this standard.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.

It is one of several parts, which are as follows:

Part 1: Determination of inward leakage and total inward leakage;
Part 2: Practical performance tests;
Part 3: Determination of breathing resistance;
Part 4: Flame tests;
Part 5: Climatic conditions;
Part 6: Determination of carbon dioxide content of inhalation air;
Part 7: Determination of particle filter penetration;
Part 8: Determination of dolomite dust clogging.

Introduction

This European Standard is intended as a supplement to the specific device standards for respiratory protective devices. Test methods are specified for complete, or parts of, devices. If deviations from the test method given in this standard are necessary, these deviations will be specified in the relevant device standard.

1 Scope

This European Standard specifies the general procedure for determining:

the inward leakage of facepieces; or
inward leakage of respiratory protective devices (RPD), which is the total inward leakage excluding any filter penetration; or
total inward leakage of respiratory protective devices.

Device preparation, selection of test subjects, test procedure and the method of calculation of leakage are included. Two methods are described, one using an aerosol (sodium chloride aerosol) and one using a gas (sulfur hexafluoride).

2 Normative references

3 Terms and definitions

4 Prerequisites

5 General test requirements

6 Principle

7 Material permeability test

7.1 Principle

7.2 Apparatus

7.3 Preparation of test specimens

7.4 Procedure

8 Device preparation

8.1 General

8.2 Sample tubes and probe

8.3 Device preparation — total inward leakage

8.4 Device preparation — inward leakage

9 Test

9.1 Test subjects

9.2 Test equipment

9.3 Test method — General

9.4 Test method 1: Sulfur hexafluoride (SF₆)

9.5 Test method 2: Sodium chloride (NaCl)

BS EN 13274-1:2001

Respiratory protective devices. Methods of test - Determination of inward leakage and total inward leakage

Current

Published:

15 Mar 2001