Colour identification markings for air-purifying canisters and cartridges

Colour identification markings for air-purifying canisters and cartridges - 1st reprint June 1983 - New Delhi Indian standards institution 1977

IS:8318-1977

614.894.43:621-777.6

University Library
Cochin University of Science and Technology
Kochi-682 022, Kerala, India