| 11 |
Formaldehyde |
Distillation, Colorimetric Method |
| 12 |
Phenol |
Direct Photometric Method |
| 13 |
Free Chlorine |
DPD Colorimetric Method |
| 14 |
Pesticide |
Gas Chromatographic method |
| 15 |
Total Kjeldahl Nitrogen (TKN) |
Macro Kjeldahl Method |
| 16 |
Zinc |
Atomic Absorption Spectrometry (AAS) / Inductively Coupled
Plasma(ICP) |
| 17 |
Hexavalent Chromium |
Colorimetric Method |
| 18 |
Trivalent Chromium |
Atomic Adsorption Spectrometry (AAS)/ Inductively Coupled Plasma (ICP), Colorimetric Method |
| 19 |
Arsenic |
Atomic Absorption Spectrometry(AAS) , Hydride Generation/
Inductively Coupled Plasma (ICP) |
| 20 |
Copper |
Atomic Absorption Spectrometry (AAS) / Inductively Coupled
Plasma (ICP) |