supply of grey coloured dry magnetic powder for magnetic particle testinggrey coloured dry magnetic powder for magnetic particle testing,grey coloured dry magnetic powder for magnetic particle testing as per the following. (1) sp ec. bs4069/is 6410 (2) astm e - 709 (3) rdso m & c/ndt/8/91/appd (4) colour - grey (dry powder) note: ( 1) the supplied item should have shelf life of 3 years firm the date of supply. (2) it should be packed and su pplied in a 1kg sealed container [ warranty period: 36 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]