<p>This part of ISO 17491 specifies a method to be performed either at minimum test settings (Method 1) or at</p>
<p>more rigorous test settings (Method 2), for assessing the resistance of a gas-tight suit to outward leakage of</p>
<p>air through, for example, essential openings, fastenings, seams, interface areas between items, pores and any</p>
<p>imperfections in the construction materials.</p>
<p>This test does not simulate penetration by gases in an inward direction. Although the danger to the wearer</p>
<p>arises from leakage in an inward direction, this test method assesses the outward leakage of air after the gastight</p>
<p>suit has been inflated so as to stretch the construction material, thereby enabling the test method to detect</p>
<p>very small imperfections, such as holes, splits or tears.</p>
Registration number (WIID)
52471
Scope
<p>This part of ISO 17491 specifies a method to be performed either at minimum test settings (Method 1) or at</p>
<p>more rigorous test settings (Method 2), for assessing the resistance of a gas-tight suit to outward leakage of</p>
<p>air through, for example, essential openings, fastenings, seams, interface areas between items, pores and any</p>
<p>imperfections in the construction materials.</p>
<p>This test does not simulate penetration by gases in an inward direction. Although the danger to the wearer</p>
<p>arises from leakage in an inward direction, this test method assesses the outward leakage of air after the gastight</p>
<p>suit has been inflated so as to stretch the construction material, thereby enabling the test method to detect</p>
<p>very small imperfections, such as holes, splits or tears.</p>
