BS 2782系列標(biāo)準(zhǔn)屬于英國標(biāo)準(zhǔn)英標(biāo),是關(guān)于“塑料的試驗(yàn)方法”的標(biāo),在BS 2782關(guān)于老化測試部分主要是關(guān)于玻璃板下的日光暴曬照射、自然風(fēng)化或?qū)嶒?yàn)室光源照射的顏色變化和性質(zhì)改變的測定。
BS 2782-5-Method 552A1999 ISO 4582-1998
ISO 2782-1:2016 specifies three methods for the determination of the permeability to gases of vulcanized or thermoplastic rubber under a differential partial pressure.
The three methods specified are as follows:
- pressure sensor method (using vacuum): for determining the gas transmission rate, gas permeability coefficient, gas diffusion coefficient and gas solubility coefficient;
- simplified sensor method (using applied pressure): for determining the gas permeability coefficient only;
- gas-chromatographic method: for determining the gas transmi
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