The epa initiative categorized the compounds into four lists and pushed for further toxicity testing 美国环保署提案将这些化合物划分为四类，并推动进一步的毒性检验。
2.
Generation of thermal decomposition products from materials in an air stream for toxicological testing ; method for testing the inhalation toxicity 材料在通风条件下产生热分解产品及其毒性检验.检验吸
3.
Producing thermal decomposition products from materials in an air stream and their toxicological testing ; decomposition apparatus and determination of test - temperature 材料在通风条件下产生热分解产品及其毒性检验.分解仪
