Methanol Detection Tubes (2 to 56 ppm)

Methanol Detection Tubes (2 to 56 ppm)

Gastec Detection Tube No. 111LL measures Methanol with a Range of 2 to 56 ppm.

• Number of Pump Strokes: 4, 2
• Correction Factor: 1, 2.8
• Sampling Time: 2 minutes per pump stroke
• Detecting Limit: 0.2 ppm (4 pump strokes)
• Changes from Pale Yellow to Pale Bluish Green
• Corrections for temperature & humidity: Temperature correction is necessary
• Reaction Principle: CH₃OH + Cr⁶⁺ + H₃PO₄ → Cr³⁺
• Relative Standard Deviation: 15% (for 2 to 5 ppm), 10% (for 5 to 20 ppm)
• 2 Year Shelf Life
• Store the tubes at cool and dark place.

Possible coexisting substances and their interferences: