Ferroxyl Test Kit

Ensure you wear the proper PPE’s (gloves, glasses) and create a proper working area where the components of the test kit can safely be stalled.

Place 5 measuring scoops Ferroxyl reagent I in the dropping bottle. Add 25ml Ferroxyl reagent II to the scale mark. Close and shake bottle until the reagent I is dissolved.

Moisten a filter paper with 5 drops of the solution and place the moist filter paper on the surface to be tested. Wait for 60 seconds.

When blue discoloration of the filter paper starts to appear, the tested surface contains embedded iron and the pickling has not been done correctly (or the surface was afterwards contaminated again).

When no discoloration appears, remove the filter paper and rinse the surface with demineralized water (tap water can be mixed with the demineralizer resin to create demineralized water).

Test surface should be dust free, if needed, wipe with moist cloth before applying the Ferroxyl test paper.

Make sure the test paper wetted with the Ferroxyl reagent is in full contact with the tested surface, avoid air bubbles by wiping them away.

After 60 seconds the first blue spots will appear if embedded iron particles are present.

Remove the test paper from the surface.

In case of larger particles, the blue discoloration will also be visible on the tested surface. It can be removed by pickling and/or passivation liquid.