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Performance
| |||
Measuring Range
|
10 to 200 mg/L
| ||
Sampling Time
|
1 minutes
| ||
Detecting Limit
|
3 mg/L
| ||
Colour Change
|
Brown → White
| ||
Reaction Principle
|
2Cl- + Ag2CrO4 → 2AgCl
+ CrO42-
| ||
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-
|
10 mg/L
|
+
|
White(1mg/L)
|
Br-
|
10 mg/L
|
+
|
White(10mg/L)
|
SCN-
|
1 mg/L
|
+
|
White(100mg/L)
|
Fe2+
|
20 mg/L
|
-
|
No (1000 mg/L)
|
Fe3+
|
20 mg/L
|
+
|
White(20mg/L)
|
F-
|
1000mg/L
|
No
|
No (1000 mg/L)
|
I-
|
20 mg/L
|
+
|
Pale yellow
(20mg/L)
|
S2-
|
3 mg/L
|
+
|
Blackish gray
(3mg/L)
|
SO42-
|
1000 mg/L
|
No
|
No (1000mg/L) |