International Standard
ISO 17491-1:2012
Protective clothing — Test methods for clothing providing protection against chemicals — Part 1: Determination of resistance to outward leakage of gases (internal pressure test)
Reference number
ISO 17491-1:2012
Edition 1
2012-03
International Standard
Read sample
ISO 17491-1:2012
52471
Published (Edition 1, 2012)
This standard was last reviewed and confirmed in 2023. Therefore this version remains current.

ISO 17491-1:2012

ISO 17491-1:2012
52471
Language
Format
CHF 42
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Abstract

This part of ISO 17491 specifies a method to be performed either at minimum test settings (Method 1) or at

more rigorous test settings (Method 2), for assessing the resistance of a gas-tight suit to outward leakage of

air through, for example, essential openings, fastenings, seams, interface areas between items, pores and any

imperfections in the construction materials.

This test does not simulate penetration by gases in an inward direction. Although the danger to the wearer

arises from leakage in an inward direction, this test method assesses the outward leakage of air after the gastight

suit has been inflated so as to stretch the construction material, thereby enabling the test method to detect

very small imperfections, such as holes, splits or tears.

General information

  •  : Published
     : 2012-03
    : International Standard confirmed [90.93]
  •  : 1
     : 6
  • ISO/TC 94/SC 13
    13.340.10 
  • RSS updates

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