Each set consists of a Penetrant Spray, a Cleaner Spray and a Developer Spray. Meet requirements of ASTM E 165-95 & IS 3658 (1999) for Solvent Removable Penetrant, Non-Aqueous Wet Developer and Solvent Cleaner. Meets requirements of IS 3658 (1999): Code of practice for Liquid Penetrant Flaw Detection. Meets RDSO Specification no. M&CNDT1052001 Extremely low chlorine and sulphur contents. Non-corrosive to most metals.