Gastec 285 锌离子检测管(3~20 mg / L)

Indicator: 3 ~ 20 mg/L
Measuring Range: 3 ~ 20 mg/L
Sampling Time:  3 minute
Colour Change: Pale orange → Reddish purple
Reaction Principle: Zn + Indicator → Reddish purple complex compound
Nr. of tests: 10

Detail

Catalog

 

Performance
Measuring Range 3 to 20 mg/L
Sampling Time 3 minutes
Detecting Limit 0.5 mg/L
Colour Change Pale orange → Reddish purple
Reaction Principle Zn + Indicator → Reddish purple complex compound
Shelf Life 3 Years
Corrections for temperature & humidity Water temperature correction is necessary
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 + No ( ≦ 100mg/L)
Fe2+ 1 mg/L + Reddish purple ( 3mg/L)
Fe3+ 2 mg/ L + No ( ≦ 100mg/L)
Ni 2 mg/L + Purple(whole layer) ( 2mg/L)
Cu 0.1 mg/L + Reddish purple ( 0.1mg/L)
Mn 0.5 mg/L + Purple ( 3mg/L)
Pb 0.5 mg/L + No ( ≦ 100mg/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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