质量标准:项目Item                            分析纯
                                           (AR)
含量(C11H20O2)Assay,%                   ≥  99.00
折光率Refractive index,nD20           1.4345~1.4365  
酸度(以丙烯酸计)Free acids,%             ≤ 0.01
高聚物Polymer                               合格
灼烧残渣(以硫酸盐计)Ignition residue,%   ≤ 0.01
水中溶解度Solubility in water               合格
氯化物(Cl)Chloride,%                     ≤ 0.005
色度(HAZEN单位)                        ≤ 15
水份,%                                   ≤ 0.10
阻聚剂(MEHQ),ppm                            50±5
注:阻聚剂含量可根据用户要求协商确定