检验项目
T e s t I t e m
|
检验标准
T e s t S t a n d a r d
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检验结果
T e s t r e s u l t
|
性状
(Characters)
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无色结晶
(colorless crystalline)
|
合格
(Conform)
|
含量
(Assay)
|
99.0%
|
99.0%
|
PH
(Ph)
|
6.0~7.5
|
6.8
|
澄清度实验
(Appearance of solution)
|
应符合规定
(Comply with the standard)
|
合格
(Conform)
|
水不溶物
(Insoluble matter)
|
0.005%
|
0.003%
|
氯化物
(Chloride)
|
0.02%
|
0.01%
|
硫酸盐和亚硫酸盐
(Sulphates and sulphite)
|
0.05%
|
0.002%
|
硫化物
(Sulfur compounds)
|
0.00025%
|
0.0002%
|
总氮量
(Total nitrogen)
|
0.005%
|
0.004%
|
镁
(Magnesium)
|
0.001%
|
0.0006%
|
钙
(Calcium)
|
0.003%
|
0.001%
|
铁
(Iron)
|
0.0005%
|
0.0004%
|
重金属
(Heavy metal)
|
0.0005%
|
0.0005%
|
结论(Conclusion):符合分析纯之规定(The above product complies with AR)
|