Gastec 7H 快速膦检测管PH3（200~5500 ppm）

Indicator: 200 to 2500 ppm
Measuring Range: 
+ 200 to 2500 ppm, Number of Pump Strokes 1
+ 2500 to 5500 ppm, Number of Pump Strokes 1/2
Sampling Time:  per pump stroke
Colour Change: 
Reaction Principle: 
Coefficient of Variation: 
Nr. of tests: 10
Pump: GV-100S/110S

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