ISO/TC 61/SC 4
| Project No. | ISO 4589-4:2021 |
|---|---|
| Title | <p>This document specifies a test method for determining the minimum volume fraction of oxygen, in admixture with nitrogen, at ambient temperature, that supports combustion of small vertical sheet test specimen under a specified gas velocity that is higher than that specified in ISO 4589-2.</p> <p>NOTE The result is expressed as a high gas velocity oxygen index (HOI).</p> <p>In addition, this document specifies the testing apparatus for determining the HOI.</p> <p>The test method is applicable to materials in the form of sheets up to 2 mm thick. It is also applicable to flexible sheet materials that are supported vertically by a specified specimen holder.</p> |
| Registration number (WIID) | 75215 |
| Scope | <p>This document specifies a test method for determining the minimum volume fraction of oxygen, in admixture with nitrogen, at ambient temperature, that supports combustion of small vertical sheet test specimen under a specified gas velocity that is higher than that specified in ISO 4589-2.</p> <p>NOTE The result is expressed as a high gas velocity oxygen index (HOI).</p> <p>In addition, this document specifies the testing apparatus for determining the HOI.</p> <p>The test method is applicable to materials in the form of sheets up to 2 mm thick. It is also applicable to flexible sheet materials that are supported vertically by a specified specimen holder.</p> |
| Status | Standarts spēkā |
| ICS group | 13.220.40 83.080.01 |