IS:8419-(Pt.1)-1977. Indian standard requirements for filtration equipment. Pt.1 : filtration media-sand and gravel.
Indian Standards Institution[ISI]
IS:8419-(Pt.1)-1977. Indian standard requirements for filtration equipment. Pt.1 : filtration media-sand and gravel. - New Delhi Indian Standards Institution 1984 - 8p.
ENG
IS Code / I.S.I
IS:8419-(Pt.1)-1977. Indian standard requirements for filtration equipment. Pt.1 : filtration media-sand and gravel. - New Delhi Indian Standards Institution 1984 - 8p.
ENG
IS Code / I.S.I