| ลำดับ | Parameter | วิธีวิเคราะห์ |
|---|---|---|
| 11 | Formaldehyde |
Distillation, Colorimetric Method |
| 12 | Phenol |
Direct Photometric Method |
| 13 | Free Chlorine |
DPD Colourimetric 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 Absorption 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) |