supply of non destructive testing penetrants, group i conforming to is 12889-1989 (reaffirmed 2000) with non-aqueous wetnon destructive testing penetrants, group i conforming to is 12889-1989 (reaffirmed 2000) with non-aqueous wet,non destructive testing penetrants, group i conforming to is 12889-1989 (reaffirmed 2000) with non-aqueous wet developer. packing : each set comprising three items in six cans in the r atio 1:2:3 the penetrant remover & developer all in aerosol cans of 500 ml capacity each. the materia l content in each aerosol can should be 80 +/- 3% by volume & the ratio of the product to the propella nt 3:1 +/- 3%. [ warranty period: 30 months after the date of delivery ] ] => limited