Gastec 273 溶液中六价铬离子检测管(Cr6 +)(0.5~50 mg/L)

  • 制造商: Gastec
    Model: 273
    • 报价要求 报价要求
  • 886,050 VND
  • 价格合理详情请致电

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Indicator: 1 ~ 50 mg/L
Measuring Range: 0.5 ~ 50 mg/L
Sampling Time:  2 minute
Colour Change: White → Yellow
Reaction Principle: Cr6+ + Pb(CH3COO)2 → PbCrO4
Nr. of tests: 10

Details

Catalog

 

Performance
Measuring Range 0.5 to 50 mg/L
Sampling Time 2 minutes
Detecting Limit 0.4 mg/L
Colour Change White → Yellow
Reaction Principle Cr6+ + Pb(CH3COO)2 → PbCrO4
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
Cl- 20 mg/L + No
CH3COO- 20 mg/L + No
NO3- 30 mg/L + No
S2- 0.5 mg/L Unclear Brown ( ≧ 0.5 mg/L )
SO42- 10 mg/L + No
PO43- 5 mg/L + No
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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