GASTEC
Despite the rapid advancement of technology, there is one requirement for our products that never changes: the need for consumer safety. We have the opportunity to develop each time we contribute to our clients’ safety.
GASTEC places a high importance on this business culture of safety and development as it strives to grow while continuously putting its customers’ safety first.
Description of Gastec P-136-H Permeation Tube Methyl Bromide

Measuring range: 10 – 600 ppm, Scale range: 20 – 300 ppm.
Other substances measurable with this detector tube: Chloro bromomethane, Ethylene dibromide,n-Butyl bromide.
Performance of Gastec P-136-H Permeation Tube Methyl Bromide
Measuring range | 10 to 20 ppm | 20 to 300 ppm | 300 to 600 ppm |
Number of pump strokes | 2 (200 mL) | 1 (100 mL) | ½ (50 mL) |
Correction factor | ½ | 1 | 1 |
Sampling time | 3 min | 1.5 min | 45 sec |
Detecting limit | 4 ppm?2 pump strokes? | ||
Colour change | White ? Yellow | ||
Operating conditions | Temperature 0 to 40 ? (32 to 104 ?) correction not used Relative humidity 0 to 90 % correction not used | ||
Relative standard deviation | 10 %?for 20 to 100 ppm?, 5 %?for 100 to 300 ppm? | ||
Tube quantity and number of tests per box | 10 tubes for 5 tests | ||
Shelf life | 5 tests 3 |
For More Information and Price: Gastec P-136-H Permeation Tube Methyl Bromide
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