ISO 19918:2017
Protective clothing - Protection against chemicals - Measurement of cumulative permeation of chemicals with low vapour pressure through materials
- Standard No.
- ISO 19918:2017
- Release Date
- 2017
- Published By
- International Organization for Standardization (ISO)
- Status
- Replace By
- ISO 19918:2017/Amd 1:2021
- Latest
- ISO 19918:2017/Amd 1:2021
- Scope
- 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.
ISO 19918:2017 Referenced Document
- ASTM F739-12 Standard Test Method for Permeation of Liquids and Gases through Protective Clothing Materials under Conditions of Continuous Contact*， 2024-04-20 Update
- EN 16523-1:2015 Determination of material resistance to permeation by chemicals - Part 1: Permeation by liquid chemical under conditions of continuous contact
- ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
- ISO 6529:2013 Protective clothing - Protection against chemicals - Determination of resistance of protective clothing materials to permeation by liquids and gases
- ISO/IEC GUIDE 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
- ISO/IEC GUIDE 98-4:2012 Uncertainty of measurement.Part 4: Role of measurement uncertainty in conformity assessment
ISO 19918:2017 history
- 2021 ISO 19918:2017/Amd 1:2021 Protective clothing - Protection against chemicals - Measurement of cumulative permeation of chemicals with low vapour pressure through materials - Amendment 1: Extraction and chemical analysis
- 2017 ISO 19918:2017 Protective clothing - Protection against chemicals - Measurement of cumulative permeation of chemicals with low vapour pressure through materials
