Chromate is produced in pickling and plating operations anodizing aluminium leather tanning manufacturing of paints dyes and explosives. Chromate is used to inhibit corrosion in open and closed system cooling towers. This AE208 – CHROMATE TEST KIT water test kit is generally used by paint and dye manufacturers and very rarely for monitoring cooling systems as with the advent of technology newer safer biocides are being used and chromate has almost left the scene.