Methyl Bromide Detection Tubes (0.1 to 3.0 ppm)

Methyl Bromide Detection Tubes (0.1 to 3.0 ppm)

Gastec Detection Tube No. 136LL measures Methyl Bromide with a Range of 0.1 to 3.0 ppm.

• Measuring Range: 0.1 to 1.2 ppm, 1.2 to 3.0 ppm
• Number of Pump Strokes: 2, 1
• Correction Factor: 1, 2.5
• Sampling Time: 2 minutes per pump stroke
• Detecting Limit: 0.02 ppm (2 pump strokes)
• Changes from White to Pale Purple
• Corrections for temperature & humidity: Temperature correction is necessary
• Relative Standard Deviation: 10% (for 0.1 to 0.4 ppm), 5% (for 0.4 to 1.2 ppm)
• 2 Year Shelf Life
• Reaction Principle:
  • CH₃Br + CrO₃ + H₂S₂O₇ → Br₂
  • Br₂ + 3,3'-Dimethylnaphthidine → reaction product
• Store the tubes at cool and dark place.
• Comes in a Box of 5 pre tubes and 5 detector tubes

Possible coexisting substances and their interferences: