Name: Gastec 27 Polytec-IV Qualitative Analysis Polytec tube (NH3,HCl,H2S,SO2,NO2,CO,CO2)
Brand: Gastec

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	1
Sampling Time	30sec. per pump stroke
Shelf Life	1.5 Years
Reaction Principle	1.Neutralising reaction 2.Reaction with indicator 3.Reaction with copper sulphate 4.Reaction with barium chloride and indicator. 5.Reaction with o-tolidine 6.Reduction reaction 7.Neutralising reaction

Substance	Conc. (ppm)	Colour Change
Substance	Conc. (ppm)	1 (Purple )	2 (Yellow)	3 (White)	4 (Blue)	5 (White)	6 (Yellow)	7 (Blue)
Ammonia	25 150	Yellow (Inlet) Yellow (WL)	-	-	-	-	-	-
Diethylamine	25 150	Yellow (Inlet) Yellow (WL)	-	-	-	-	-	-
Hydrogen Chloride	5 150	-	Red (Inlet) Red (WL)	-	-	-	-	-
Hydrogen Sulphide	10 120 200 800	-	-	Brown (Inlet) Brown (WL) Brown (WL) Brown (WL)	-	-	BB (Inlet) BB (WL)	-
Chlorine	5 20 50	-	-	-	Yellow (Inlet) Yellow (WL) Yellow (WL)	Yellow (Inlet) Yellow (WL)	-	-
Sulphur Dioxide	10 50	-	-	-	Yellow (Inlet) Yellow (WL)	-	-	-
Nitrogen Dioxide	5 30	-	-	-	Purple (WL) Purple (WL)	YO (Inlet) YO (WL)	-	-
Carbon Monoxide	25 100	-	-	-	-	-	BB (Inlet) BB (WL)	-
Hydrogen	50000 100000	-	-	-	-	-	Gray(WL) BB (WL)	-
Phosphine	50 700	-	-	-	-	-	BB (Inlet) BB (WL)	-
Acetylene	200 2000	-	-	-	-	-	BB (Inlet) BB (WL)	-
Ethylene	10000	-	-	-	-	-	BB (Inlet)	-
Propylene	10000 50000	-	-	-	-	-	Gray ((Inlet) Gray (WL)	-
Methyl Mercaptan	200 1000	-	-	-	-	-	YO (Inlet) YO (WL)	-
Carbon Dioxide	5000 20000	-	-	-	-	-	-	Brown (Inlet) Brown (WL)

Gastec 27 Polytec-IV Qualitative Analysis Polytec tube (NH3,HCl,H2S,SO2,NO2,CO,CO2)

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