Performance Measuring Range （25） to 1000 mg/L Sampling Time 3 minutes Detecting Limit 1 mg/L Colour Change Brown → White Reaction Principle 2Cl- + Ag2CrO4 → 2AgCl Shelf Life 3 Years Corrections for temperature & humidity Unnecessary Store the tubes at cool and dark place. Possible coexisting substances and their interferences （NOTE） Substance Concentration Interference Change colour by itself to CN- 1 mg/L + White Br- 10 mg/L + White SCN- 30 mg/L + White Fe2+ 200 mg/L - No （1000 mg/L） Fe3+ 200 m

Chloride Ion                       NO.221L

Cl^-

Performance
Measuring Range			（25） to 1000 mg/L
Sampling Time			3 minutes
Detecting Limit			1 mg/L
Colour Change			Brown → White
Reaction Principle			2Cl- + Ag2CrO4 →2AgCl
Shelf Life			3 Years
Corrections for temperature &humidity			Unnecessary
Store the tubes at cool and darkplace.
Possible coexisting substances and theirinterferences （NOTE）
Substance	Concentration	Interference	Change colour by itselfto
CN-	1 mg/L	+	White
Br-	10 mg/L	+	White
SCN-	30 mg/L	+	White
Fe2+	200 mg/L	-	No （1000 mg/L）
Fe3+	200 mg/L	-	White
F-	500 mg/L	-	No （1000 mg/L）
I-	50 mg/L	+	White
S2-	5 mg/L	+	Blackish gray
SO42-	2000 mg/L	-	White