| 检验项目
TEST ITEM |
标准值
STANDARD |
检验结果
TEST RESULT |
| 外观
APPEARANCE |
白色结晶粉末
White crystalline powder |
白色结晶粉末
White crystalline powder |
| PH值(1%水溶液)25°C
рН 1% р-р 25°C |
10.5-11.5 | 11.2 |
| 含量%
Purity % |
≥99.5 | 99.9 |
| 螯合值(mg/g)
Chelate Value(mg/g) |
≥220 | 227 |
| 氨基三乙酸%
NTA% |
≤0.1 | 0.07 |
| 重金属(以Pb计)
Heavy metals (for ex, Pb) , % |
≤0.001 | 0.0007 |
| 铁
Fe, % |
≤0.001 | 0.00008 |
| 氯化物%
Chlorides, % |
≤0.001 | 0.0007 |
| 硫酸盐
Sulfate,% |
≤0.001 | 0.0007 |
| 检验结论
TEST CONCLUSION |
合 格
PASS |
|
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