BS EN ISO 6529:2001

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Choice of analytical technique and collection
   medium
   5.1 General
   5.2 Gaseous collection medium
   5.3 Liquid collection medium
   5.4 Other collection medium
6 Apparatus
7 Sampling
   7.1 Sampling procedure
   7.2 Preparation of test specimens
   7.3 Measurement of test specimen thickness and
        mass
8 Procedure
   8.1 Calibration
   8.2 Preparation of test apparatus
   8.3 Method A - Liquid chemicals with continuous
        contact
   8.4 Method B - Gaseous chemicals with continuous
        contact
   8.5 Method C - Liquid or gaseous chemical with
        intermittent contact
   8.6 Preparation of permeation plot
   8.7 Determination of breakthrough detection time
        and normalized breakthrough detection time
   8.8 Calculation of permeation rate and cumulative
        permeation
   8.9 Visual assessment of test specimens
   8.10 Repeat test
9 Report
Annex A (informative) Recommended list of chemicals
        for comparing permeation resistance of
        protective clothing materials
Annex B (informative) Precision information for test
         method
Annex C (informative) Sources of permeation test cells
         and permeation test cells parts
Annex D (informative) Suggested procedure for measuring
        the sensitivity of open-loop permeation test
        systems
Bibliography

Defines laboratory test methods that enable a determination of the resistance of materials used in protective clothing to permeation by liquids or gaseous chemicals under the conditions of either continuous or intermittent contact.

This International Standard describes laboratory test methods that enable a determination of the resistance of materials used in protective clothing to permeation by liquid or gaseous chemicals under the conditions of either continuous or intermittent contact.

Method A (see 8.3) is applicable to the testing of liquid chemicals, either volatile or soluble in water, expected to be in continuous contact with the protective clothing material.

Method B (see 8.4) is applicable to the testing of gaseous chemicals expected to be in continuous contact with the protective clothing material.

Method C (see 8.5) is applicable to the testing of liquid chemicals, either volatile or soluble in water, expected to be in intermittent contact with the protective clothing material.

These test methods are only suitable for the testing of air-impermeable protective clothing materials. They assess the permeation resistance of the protective clothing material under laboratory conditions in terms of breakthrough time, permeation rate, and cumulative permeation. These test methods also enable observations to be made of the effects of the test liquid on the protective clothing material under test.

These test methods address only the performance of materials or certain material constructions (e.g. seams) used in protective clothing. These test methods do not address the design, overall construction and components, or interfaces of garments or other factors which may affect the overall protection offered by the protective clothing.

It is emphasized that these tests do not necessarily simulate conditions to which clothing materials are likely to be exposed in practice. The use of test data should therefore be restricted to broad comparative assessment of such material according to their permeation-resistance characteristics.