paint enamel synthetic exterior undercoating to is : 8662:2004 with rdso amendment no.1 ( rev.0 ) for pigment content as an additional requirement to is: 8662 - 2004 colour shade to ral 070 80 40 ( apricot yellow ) with additional requirement of icf/mdspec - 045 issue status 02, rev.no.03 and rdso s amendment no.1b as an additional requirement.