
Gastec 285 锌离子检测管(3~20 mg / L)
制造商: Gastec Model: 285 - 联系
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
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. |
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) |
(i.e. in solution).
Dissolved sulphide detector tube
211H / 211M / 211 / 211LL
![]() |
![]() |
Liquid detector tube
|
* Adjustment for pH is required when measuring with liquid detector tubes.
- 质量承诺
- 正品保修
- 送货到家
- 交易简单化