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visocolor ECO Iron One Test Kit

visocolor ECO Iron One Test Kit


Colorimetric determination of Fe(II) and Fe(III) ions with a triazine derivate

Measurement range:

0.04–1.0 mg/L Fe

Contents of test kit (*refill pack):
sufficient for 200 tests

  • 30 mL Fe-1*
  • 2 screw-plug measuring glasses
  • 1 slide comparator
  • 1 color chart
  • 1 plastic syringe 5 mL
  • 1 instruction for use*

Hazard warning:
Information regarding safety can be found on the box’ label and in the safety data sheet. You can download the SDS from

Instructions for use:
Also refer to the pictogram on the back of the color chart

  •  Pour a 5 mL water sample into each of the measuring glasses using the plastic syringe.
  • Place a measuring glass on position A in the comparator.
  • Only add the reagent to measuring glass B.
  •  Add 5 drops of Fe-1, seal the glass and mix.
  •  Open the glass after 3 min and place it on position B in the comparator.
  •  Slide the comparator until the colors match in the inspection hole on top.
  • Check the measurement reading in the recess on the comparator reed.
  • Mid-values can be estimated.
  •  After use, rinse out both measuring glasses thoroughly and seal them.
  • The reagents can also be used for the photometric evaluation with photometers PF-12 and PF-12Plus.
  • This technique can be used also for analyzing sea water.

Disposing of the samples:
Information regarding disposal can be found in the safety data sheet. You can download the SDS from


The following quantities of ions will not interfere: ≤ 5 mg/L Co2+, Ni2+, MoO4 2–; ≤ 3 mg/L Cu2+.

Conversion table

mg/L Fe mmol/m3

  • 0.04 0.7
  • 0.07 1.3
  • 0.10 1.8
  • 0.15 2.7
  • 0.20 3.6
  • 0.30 5.4
  • 0.50 9.0
  • 1.0 18


Store the test kit in a cool (< 25 °C) and dry place.

Documents / Resources

visocolor ECO Iron One Test Kit [pdf] Instruction Manual
Iron One, Test Kit, Iron One Test Kit


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