| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add to Cart |
| HG 2022-1991 |
Determination of free chlorine and total chlorine in industrial circulating cooling water N, N-Diethyl-1, 4-Phenylenediamine titration |
60.0 |
via email in 1~3 business day |
abolished2010-01-20 ,,1992-1-1 |
|
| HG/T 2023-1991 |
Determination of free chlorine and total chlorine in industrial circulating cooling water N, N-Diethyl-1, 4-Phenylenediamine spectrophotometric method |
180.0 |
via email in 1~3 business day |
abolished2010-01-20 ,,1992-1-1 |
|
| HG/T 2156-1991 |
Determination of anionic surface active agent in industrial circulating cooling water Methylene blue spectrophotometric method |
184.0 |
via email in 1~3 business day |
superseded2010-06-01 ,2010-6-1,1992-1-1 |
|
| SL 495-2010 |
Determination of chlorinated herbicides in water by gas chromatography |
120.0 |
via email in 1~3 business day |
valid,,2010-12-17 |
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