IS:5536-1969. Indian standard specification for constant flow type air-permeability apparatus (lea and nurse type).
Indian Standards Institution[ISI]
IS:5536-1969. Indian standard specification for constant flow type air-permeability apparatus (lea and nurse type). - New Delhi Bureau of Indian Standards 1990 - 12p.
ENG
IS CODE / B.I.S
IS:5536-1969. Indian standard specification for constant flow type air-permeability apparatus (lea and nurse type). - New Delhi Bureau of Indian Standards 1990 - 12p.
ENG
IS CODE / B.I.S