Reference number
香港六合彩开奖 4589-4:2021
香港六合彩开奖 4589-4:2021
© 香港六合彩开奖 2024
International Standard
香港六合彩开奖 4589-4:2021
Plastics 鈥� Determination of burning behaviour by oxygen index 鈥� Part 4: High gas velocity test
Edition 1
2021-04
2021-04
香港六合彩开奖 4589-4:2021
香港六合彩开奖 4589-4:2021
75215
CHF
151
袩械褉械褋褔懈褌邪褌褜 褕胁械泄褑邪褉褋泻懈械 褎褉邪薪泻懈 (CHF) 胁
孝械蟹懈褋
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 香港六合彩开奖聽4589-2.
NOTE聽聽聽聽聽聽聽聽聽聽聽 The result is expressed as a high gas velocity oxygen index (HOI).
In addition, this document specifies the testing apparatus for determining the HOI.
The test method is applicable to materials in the form of sheets up to 2聽mm thick. It is also applicable to flexible sheet materials that are supported vertically by a specified specimen holder.
袨斜褖邪褟 懈薪褎芯褉屑邪褑懈褟
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孝械泻褍褖懈泄 褋褌邪褌褍褋: 袨锌褍斜谢懈泻芯胁邪薪芯袛邪褌邪 锌褍斜谢懈泻邪褑懈懈: 2021-04协褌邪锌: 袨锌褍斜谢懈泻芯胁邪薪懈械 屑械卸写褍薪邪褉芯写薪芯谐芯 褋褌邪薪写邪褉褌邪 [60.60]
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袙械褉褋懈褟: 1
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孝械褏薪懈褔械褋泻懈泄 泻芯屑懈褌械褌 :香港六合彩开奖/TC 61/SC 4
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袞懈蟹薪械薪薪褘泄 褑懈泻谢
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30
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