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BS EN ISO 19918:2017+A1:2021

BS EN ISO 19918:2017+A1:2021

$142.49

Protective clothing. Protection against chemicals. Measurement of cumulative permeation of chemicals with low vapour pressure through materials

Published By Publication Date Number of Pages
BSI 2021 26
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This document describes laboratory test methods to determine the resistance of materials, closures, and seams used in personal protective equipment (PPE) to permeation by solid or liquid chemicals with low vapour pressure (less than 133,322 Pa at 25 °C) and/or insolubility in water or other liquids commonly used as collection media. These chemicals that are often part of pesticide formulations and other mixtures cannot be measured using other standards for measuring permeation. This test method is suitable for field strength and concentrated pesticide formulations as well as other mixtures in which the active ingredient is a chemical with low vapour pressure and/or low solubility in commonly used liquid and gaseous collection media.

This test method is not intended to be used in place of standards such as ISO 6529, EN 16523‑1 and ASTM F739, which measure permeation of chemicals that are either volatile or soluble in water or other liquids that do not interact with the material being tested. This document is not suitable for measurement of volatile chemicals that may evaporate before the chemical analysis is complete.

The degree of contamination depends on numerous factors, such as type of exposure, application technique, and chemical formulation. As the level of exposure can vary considerably, this method is designed to rate relative performance of PPE materials for different durations.

This method is designed to measure cumulative permeation. Breakthrough time cannot be measured by this method. This test method does not measure resistance to penetration or degradation.

The test method standard may be used for the evaluation of PPE materials that are new or those for which the product standard requires treatment, such as laundering or simulated abrasion. Details of the treatment shall be reported.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 European foreword
Anchor 3
Foreword to amendment A1
7 Annex ZA (informative) Relationship between this European Standard and the essential requirements of EU Directive 89/686/EEC aimed to be covered
9 Foreword
10 Introduction
11 1 Scope
2 Normative references
3 Terms and definitions
13 4 Principle
5 Apparatus and supplies
14 6 Test parameters
6.1 Analytical method
15 6.2 Determination of extraction efficiency
6.3 Test specimens
16 7 Preparation of test chemical and test specimens
8 Procedure
8.1 Contamination
17 8.2 Extraction and analysis
9 Expression of results
18 10 Report
11 Precision and bias
19 Annex A (informative) Schematic diagram of the permeation cell
20 Annex B (normative) Drawing and measurements of the permeation cell, washer, and bolts
22 Annex C (informative) Sources of permeation test cells, and permeation cell parts
23 Annex D (informative) Selection of gasket and pressure
24 Annex E (informative) Interlaboratory test data
25 Bibliography

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BS EN ISO 19918:2017+A1:2021
$142.49