Tender For supply of welding hand shield of fibre with coloured glass filters ("shade no.11 aidings0196ce") & filter covers for use during electric annual rate contract welding / cutting & conforming to is 1179-1967 (first revision) with amnd. no.2 of june 2008. the eye protector used should confirm to is: 5983-1980 (second revision) with amnd. no.1 of oct, 2010. specn: bss 679 .