| Index of target gases/substances :W |  |
| Gas
or Vapour to be Measured Chemical Formula |
Gastec
Tube No. & Name |
Measuring Range (ppm) |
No.of Pump Strokes |
Shelf Life (year) |
Note | TLV- TWA,C (ACGIH) (ppm) |
||
| Water
vapour H2O |
6 | Water vapour | 18-32 mg/L | 1/2 | 3 | T | - | |
| 1-18 mg/L | 1 | |||||||
| 0.5-1 mg/L | 2 | |||||||
| 6L | Water vapour | 1-2 mg/L | 1/2 | 3 | ||||
| 0.05-1 mg/L | 1 | |||||||
| 6LP | Pipeline Dew Point Tube | 40-100LB/MMCF | 1/2 | 3 | T | |||
| 3-40 LB/MMCF | 1 | |||||||
| 6LLP | Pipeline Dew Point Tube | 2-10 LB/MMCF | 2 | 3 | T | |||
| T:Temp Correction | H:Humidity Correction | *:Refrigerator Store | Mesh:Correction Factor/Chart |
