| Measured Gas | Hydrogen Sulphide |
| Tube No. | 120SE |
| Scaled Range | 1 to 20 ppm |
| Testable Range | 0.5 to 40 ppm |
| Unit Scale | ppm |
| Multi-Range | Yes |
| Original Color | Yellow |
| Stain Color | Pink |
| Shelf Life | 2 Years |
| CAS No. | 7783-06-4 |
| Tube Layout | [ Detector Tube ] |
| Typical Applications |
Process control in sulphur recovery plant in petroleum refinery |
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