A Ferroxyl-based direct surface test kit designed to help rapidly identify localized free iron contamination and active iron-bearing areas on stainless steel surfaces, especially around welds, joints, ground areas, and other critical locations....
Easily check for nickel in buttons, jewelry, metal accessories and surfaces. Monitor nickel in water, metal parts and industrial processes....
A surface-extraction test kit designed to help rapidly detect extractable iron residues remaining on stainless steel surfaces after cleaning, pickling, and passivation by means of a color reaction....