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HAZARDOUS DETAILS: UN: 1002, AIR, COMPRESSED,CLASS: 2.2, EMS: F-C S-V, CHEMTREC +1 800 42 4 9300 10 RESEARCH EQUIPMENT US RETURN GOODS HAZARDOUS DETAILS: UN: 1956, COMPRESSED GAS,N.O.S. (CARBON DIOXIDE IN AIR), CLASS: 2.2, EMS: F-C S-V, CHEMTREC +1 800 424 9300 HAZARDOUS DETAILS: UN: 1956, COMPRESSED GAS,N.O.S. (HELIUM BUTANE), CLASS: 2.2, EMS: F-CS-V, CHEMTREC +1 800 424 93001 OCEANOGRAPHIC SCIENTIFIC