Gastec 221LL 氯离子检测管(Cl-)(10~200 mg / L)

Indicator: 10 ~ 200 mg/L
Measuring Range: 10 ~ 200 mg/L
Sampling Time:  
Colour Change: 
Reaction Principle: 
Nr. of tests: 10

Detail

Catalog

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 Changes colour by itself to
CN- 10 mg/L + White ( ≧ 1mg/L)
Br- 10 mg/L + White ( ≧ 10mg/L)
SCN- 1 mg/L Unreadable White ( ≧ 100mg/L)
Fe2+ 20 mg/L No ( ≦ 1000mg/L)
Fe3+ 20 mg/L + White ( ≧ 20mg/L)
F- ≦ 1000 mg/L No No( ≦ 1000mg/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)
Other substance measurable with this detector tube
Substance Correction Factor Measuring Range
Br- 2.4 24 to 480 mg/l

 

Detector tubes for dissolved substances
(i.e. in solution).
Dissolved sulphide detector tube
211H / 211M / 211 / 211LL
Liquid detector tube
 
Ozone: 218
Chloride ion: 221L / 221LL
Mercury: 271
Hexavalent chromium: 273
Bivalent iron: 281
Copper: 284
Zinc: 285
Nicke: 291
To measure, simply immerse the detector tube in a sample of liquid (placed in a beaker or other container). Anyone can measure concentrations quickly, easily and accurately on site.

* Adjustment for pH is required when measuring with liquid detector tubes.
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