Aviado D M
Toxicology. 1975;3(3):321-32. doi: 10.1016/0300-483x(75)90033-5.
The 15 propellants are grouped into four classes on the basis of results of investigation reported in this series of publications. Class 1 low-pressure propellants of high toxicity; Class 2 low-pressure propellants of intermediate toxicity; Class 3 high-pressure propellants of intermediate toxicity; and Class 4 high-pressure propellants of low toxicity.
根据本系列出版物中报告的调查结果,这15种推进剂被分为四类。第1类是高毒性的低压推进剂;第2类是中等毒性的低压推进剂;第3类是中等毒性的高压推进剂;第4类是低毒性的高压推进剂。