项  目

指  标

TiO2含量，%（m/m）                                   ≥

98.5

颜色（与GB1706-93国家一等品标准样品比）                               

不低于

散射力（与GB1706-93国家一等品标准样品比）%          ≥                                        

100

105℃挥发物，%（m/m）                               ≤

0.5

水悬浮液PH值

6.8~7.3

吸油量，g/100g                                       ≤

25

筛余物（45um筛孔），%（m/m）                        ≤

0.05

水萃取液电阻率，Ωm                                  ≥

30

吸水量，g/100g                                        ≤

28

水分散性，%                                          ≥

80

铁含量PPm                                           ≤

       40

企业内控指标

干 粉 色 相

        L               ≥

100.0

 b             

-0.60~-0.20