Chemicals for use in industry; chemical preparations for testing purposes; substances and preparations for use in non-destructive testing; substances and preparations for use in nondestructive testing including liquids, aerosols and powders; chemicals for use in non-destructive testing; chemical preparations for testing of metal and metal surfaces; chemical preparations for testing critical steel components; chemicals used in conjunction with magnetic particle testing; chemicals testing reagents in the nature of colour dyes, fluorescent dyes and magnetic particles which are applied to metal and metal surfaces to test for defects; chemicals in the nature of penetrants for materials testing

Pharmaceutical preparation