Requirements for two types, each with three classes, of coatings all of which give films that comply with the national requirements for contact with potable water.Cross References:BS 245BS 2015BS 2523BS 3761BS 3900:Part A1BS 3900:Part A3BS 3900:Part A8 BS 3900:Part A13BS 3900:Part C2BS 3900:Part E1BS 3900:Part E5BS 3900:Part F4BS 3900:Part G5BS 3900:Part H2BS 5493BS 6150 BS 6920:Part 1BS 694980/778/EECUK Water Fittings Byelaws Scheme Note No. 5-01-02Health and Safety Executive Guidance Note GS5. Entry into Confined Spaces