Name: Gastec 25 Polytec-II 定性分析Polytecチューブ (NH3,SO2,H2S,CO)
Brand: Gastec

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Number of Pump Stroke	1
Sampling Time	1 minute per pump stroke
Shelf Life	2 Years
Reaction Principle	NH₃:Neutralising reaction SO₂:Free acid is produced →acid-base reaction H₂S:Sulphuric compound is produced CO:Reduction reaction with Palladium compound

Substance	Conc. (ppm)	Colour Change
		NH₃	SO₂	H₂S	CO

Ammonia	0.5 5	Yellow (Inlet) Yellow (9mm)	-	-	-
Hydrogen Chloride	5	-	Yellow (3mm)	-	-
Chlorine	1	-	Yellow (3mm)	-	-
Sulphur Dioxide	1 2	-	Yellow (Inlet) Yellow (6mm)	-	-
Nitrogen Dioxide	3	-	Purple (Inlet)	-	-
Hydrogen Sulphide	10	-	-	Brown (Inlet)	-
Carbon Monoxide	10	-	-	-	Blackish brown (Inlet)
Hydrogen	10000	-	-	-	Blackish brown(Whole layer)
Olefin HCs	10000	-	-	-	Blackish brown(Whole layer)
Mercaptans	10				Blackish brown (Inlet)
(1) Amines give the same discolouration with Ammonia. (2) If Hydrogen Sulphide layer was wholly discoloured by Hydrogen Sulphide, Carbon Monoxide layer may be interfered. (3) If Nitrogen Dioxide is higher than 60 ppm CO layer discolours red. (4) (Inlet) means the approximate gas concentration discolour the inlet of the layer. (5) (Whole layer) means the approximate gas concentration discolour the reagent of the whole layer.

Gastec 25 Polytec-II 定性分析Polytecチューブ (NH3,SO2,H2S,CO)

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