Safer Solvents and Auxiliaries: The use of auxiliary substances (e.g., solvents, separation agents, etc.) should be made unnecessary wherever possible and innocuous when used.

• 安全的溶剂和辅助剂：尽可能的避免使用辅助物质(像是溶剂、分离试剂等)，假如无法避免，也要选用无毒害的。