产品品牌：

日本gastec

产品型号：

211LL

类型：

水质在线分析仪

211LL硫化物水质快速检知管S2-的详细介绍

sulphide Ion NO.211LL S^2-

Performance
Measuring Range			10 to 100 ppm
Sampling Time			2 minutes
Detecting Limit			1 ppm
Colour Change			White → Brown
Reaction Principle			S2- + Pb(CH3COO)2→ PbS
Shelf Life			3 Years
Corrections for temperature & humidity			Unnecessary
Store the tubes at cool and dark place.
Possible coexisting substancesand their interferences (NOTE)
Substance	Concentration	Interference	Change colour by itselfto
CO32-	20 ppm	No	No(1%)
Cl-	100 ppm	No	No(5%)
Cr6+	0.2 ppm	-	Yellow(1ppm)
CO32-	500 ppm	No	No(1%)
S2O32-	20 ppm	No	No(1%)
I-	200 ppm	No	Yellow(3000ppm)
SO42-	100 ppm	No	No(1%)
PO43-	100 ppm	No	No(1%)