|
No. |
Lists of reference materials/certified reference materials |
Manufacturer |
Supplier |
|
1 |
521 Nitrosamines calibration standard |
Restek Corporation (USA) |
CE Combination Co.Ltd. (Thailand) |
|
2 |
Nitrosamines mixture |
Ultra Scientific (USA) |
Power Tech Chemical Industry Co., Ltd. (Thailand) |
|
3 |
N-Nitrosomorpholine |
AccuStandard, Inc. (USA) |
Saengvith Science Co., Ltd. (Thailand) S.M. Chemical Supplies Co., Ltd. (Thailand) |
