| Measured Gas | Furfural |
| Tube No. | 190U |
| Scaled Range | 2 to 60 ppm |
| Testable Range | 2 to 60 ppm |
| Unit Scale | ppm |
| Multi-Range | No |
| Original Color | Yellow |
| Stain Color | Pale Blue |
| Shelf Life | 2 Years |
| CAS No. | 98-01-1 |
| Tube Layout | [ Detector Tube ] |
| Typical Applications |
Materials of Nylon 66, insecticide |
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