Draeger 8101871 Mercaptan 20/a Detector Tubes (10 tests per box)

Application Range:

• Standard Measuring Range: 20 to 100 ppm
• Number of Strokes n: 10
• Time for Measurement: approx. 2.5 min
• Standard Deviation: ± 10 to 15 %
• Color Change: White → Yellow Brown

Ambient Operating Conditions:

• Temperature: 0 to 50 °C
• Absolute Humidity: 3 to 30 mg H2O / L

Reaction Principle:

• a) 2 R-SH + Cu2+ → Cu(RS)2 + 2 H+
• b) Cu(RS)2 + S → yellow brown copper compound

Cross Sensitivity:

• Higher molecular weight alkyl mercaptans (e.g. propyl- and butylmercaptans) are indicated with approximately the same sensitivity.
• Hydrogen sulfide is indicated with approximately twice the sensitivity of the mercaptans (e.g. 10 ppm hydrogen sulfide gives an indication of 20 ppm).
• In presence of Hydrogen Sulfide a measurement of mercaptans is impossible.

Additional Information:

• After performing the required ten pump strokes the reagent ampoule must be broken.
• The liquid of the ampoule must be transferred to the indicating layer and carefully drawn through it using the pump.
• After completing the measurement wait for 3 min prior to evaluation.