指示名稱GB6782-2009BP93/98E331外觀--Colorless or white crystal or crystalline含量,%99.0-100.5t99.0-101.099.0-101.0酸堿度符合規定Accord with the testAccord with the test硫酸鹽,≤%0.010.0150.015重金屬(以鉛計),≤%--0.0010.0005草酸鹽,≤%0.010.030.01易碳化物 1.0%Accord with the testAccord with the test氯化物,≤%0.0050.0050.005干燥失重,%10.0-13.011.0-13.011.0-13.0
PH值(5%透明溶液)
----7.5-9砷,≤ppm1--1鉛,≤ppm2--1汞,≤ppm----1澄清度--–Accord with the test透光率96.0 鐵鹽≤mg/kg5 鈣鹽≤mg/kg0.02 水不溶物通過溶膜試驗