Hydrogen Sulfide 1/d, 10 - 200 PPM / 1 - 20 PPM, Part # 8101831, 10 Tests

Application Range

Standard Measuring Range: 10 to 200 / 1 to 20 ppm

Number of Strokes n: 1 / 10

Time for Measurement: approx. 1 min / approx. 10 min

Standard Deviation: ± 15 %

Color Change: white š brown

Ambient Operating Conditions

Temperature: 2 to 40 °C

Absolute Humidity: max. 40 mg H2O / L

Reaction Principle

H2S + Cu2 š CuS + 2H+

Cross Sensitivity

500 ppm hydrochloric acid, 500 ppm sulfur dioxide, 500 ppm ammonia or 100 ppm arsine do not interfere with the reading. Methyl mercaptan and ethyl mercaptan change the entire indicating layer to a pale yellow. When mixed with hydrogen sulfide, the reading is extended by approx. 30%