GB/T 20778-2006
Evaluation of biodegradability of water treatment chemicals - Carbon dioxide evolution test 水处理剂可生物降解性能评价方法 - CO2 生成量法 |
GB/T 13934-2006
Rubber,vulcanized or thermoplastic - Determination of flex cracking and crack growth(De Mattia) 硫化橡胶或热塑性橡胶 屈挠龟裂和裂口增长的测定(德墨西亚型) |
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