Tender For supply of nondestructivetesting penetrants, group i confirming to is 12889-1989 (reaffirmed 20 00) with non aqueous wet developer. packing; each set comprising three items in six can in the ratio 1:2:3 as penetrant, remover/cleaner and developer all in aerosol cans of 500 ml capacity each. the co ntent in each aerosol can should be 80 +/- 3% by volume and the ratio of the product to the propellent 3:1 +/-3%. [ warranty period: 30 months after the date of delivery ]