1.保证试剂(G.R.):一级试剂,又称优质纯,含杂质最少,瓶签为绿色标志,用于精密分析和科研。 2.分析纯试剂(A.R.):二级试剂,含杂质稍多,瓶签为红色标志,用于重要分析及一般研究。 3.化学纯试剂(C.P.):三级试剂,纯度不如分析纯试剂,瓶签为蓝色标志,用于工矿学校 1. Reagent Reagent (G.R.): A grade of reagent, also known as high purity, with the least amount of impurities, with a green label as a bottle for precision analysis and scientific research. 2. Analytical Reagents (A.R.): Secondary Reagents containing slightly more impurities, labeled with a red label for critical analysis and general research. 3.Chemical Reagent (C.P.): Three reagent, purity is not as good as the analysis of reagents, bottle sign for the blue mark for mining schools