Issue Date: November 22, 1995
Revision Date: August 23, 1999
Mine Safety Appliances
Tankgard P/N 481532,Tankgard VIII P/N 488803
Out-of-Tank Product Detector (Vapor-Phase)
Detector
| Output Type | Quantitative |
|---|---|
| Sampling Frequency | Continuous |
| Operating Principle | Metal oxide semiconductor |
Test Results
| Benzene | 2-methylbutane | |
|---|---|---|
| Detection time (sec) | 5 | 16 |
| Fall time (min:sec) | 04:12 | 04:42 |
| Lower detection limit (ppm) | 12.5 | 12.5 |
Specificity Results (in addition to above)
Activated (100%): n-butane, n-hexane, 2-methylpentane, toluene, isobutane.
Manufacturer's specifications
| Maximum Wire Distance | 500 ft using 18 AWG |
|---|---|
| Response Time | 30 seconds |
| Recovery Time | 1 minute maximum |
| Sensor Life | 2 year warranty |
- Mine Safety Appliances
P. O. Box 427
Pittsburgh, PA 15230
Tel: 800) 672-4678 - Evaluator: Carnegie Mellon Research Institute
Tel: (412) 268-3495
Date of Evaluation: 03/26/91, 03/28/91
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