香港六合彩开奖 2896:2001

薪械写芯褋褌褍锌薪芯薪邪褉褍褋褋泻芯屑褟蟹褘泻械

袨锌褍斜谢懈泻芯胁邪薪芯 (袙械褉褋懈褟 3, 2001)

袩芯褋谢械写薪懈泄褉邪蟹褝褌芯褌锌褍斜谢懈泻邪褑懈褟斜褘谢锌械褉械褋屑芯褌褉械薪胁 2017. 袩芯褝褌芯屑褍写邪薪薪邪褟胁械褉褋懈褟芯褋褌邪械褌褋褟邪泻褌褍邪谢褜薪芯泄.

CHF 63

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 International Standard specifies a method for the determination of the water absorption of rigid cellular plastics

by measuring the buoyant force on a test specimen after immersion under a 50 mm head of water for 4 days.

Corrections are specified to take account of any change in volume of the specimen and also to correct for the

volume of water in the cut surface cells of the specimen. The water absorption is expressed as the average, for

several specimens, of the percentage increase in volume relative to the original volume.

The method described is intended for quality control and for use in product specifications.

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