d2w的原理是在制造塑料制品的过程中，加入少许(通常是1%)的能帮助分解的添加物(Pro-degradant)，借以改变塑料的结构但不影响其它特性。当产品失去效用或不被需要，即设定产品的使用周期结束时(可由d2w?
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degradant additive 降解添加剂
anti-degradant 抗降解剂
anti degradant 抗讲解剂
photo-degradant 光降解剂
degradant accretion 降解增加剂
Degradant results may be higher or lower than the ICH reporting threshold from time point to time point.
降解产物的结果在不同的时间点可能会高于或低于ich的报告限。
The experiment in this article used diethylene glycol as degradant, potassium acetate as catalyst for degradation of solid polyurethane foams.
课题实验采用以一缩乙二醇作为降解剂、乙酸钾作为催化剂对固体聚氨酯泡沫废料进行降解。
One procedure fordoing this is to measure the matrix in the presence and absence of the otheractive drug substance or degradant: any interference should not exceed 2%.
另外解决的方法是不管其他活性成分或者存在存在的降解产物，对主要成分的干扰均不得超过2%。
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