|
Index |
measuring method |
|
70% |
28% |
||
Appearance |
White to yellowish paste |
Colorless to yellowish clear liquid |
eye measurement |
Active matter, % |
70±2 |
28±1 |
GB/T 5173-1995 |
Sodium sulfate, % (relative to 100% active matter ) |
1.5 max. |
1.5 max. |
GB/T 6366-1992 |
Unsulfated matter, % ( relative to 100% active matter) |
2.0 max. |
2.0 max. |
|
pH value (1% a. m.) |
7.0~9.0 |
7.0~8.5 |
GB/T 6368-1993 |
Color, Hazen (5% a. m.) |
20 max. |
10 max. |
GB/T 3143-1982 |