质量标准

• AR /  IND
• GB/T 15352-94      
  项目Item                                                     指示剂(Ind)                                              
  pH变色域Visual transition interval        1.2(红)～2.8(黄)
                                                                    8.0(黄)～9.6(蓝)
  质量吸收系数Mass absorptivity,L/(cm.g)    ≥71.0
  乙醇溶液试验Solubility in ethanol              合格
  灼烧残渣(以硫酸盐计)Ignition residue,%    ≤0.3

酸碱指示剂。pH变色范围8.0(黄)～9.6(蓝)。吸附指示剂。