I know what you mean as I often translate MSDS sheets and phrases from English into Chinese. In the past several years, I always tried to find a set of standard translations of these Risk Phrases and Safety Phrases, but was not successful. Therefore, I have to translate these phrases by myself. If such a set of standard translations exists, it would usually be included in one of the Chinese national standards (GB). However, to the best of my knowledge, none of the Chinese national standards includes such a set of standard translations so far.
I found them in in Wikipedia: