QB轻工标准 QB/T 2957 – 2008 淀粉基塑料中淀粉含量的测定;热重法(TG) QB/T 2957 - 2008.Determination of starch content of starch based plastics Thermogravimetry (TG). 1范围... 01月16日QB/T 2957 阅读全文