PG GLASSWARE

PHYSICAL AND CHEMICAL GLASSWARE AND GLASS APPARATUS FOR LABORATORY AND OTHER SCIENTIFIC USES-NAMELY, SPECIAL BLOWN CHEMICAL AND PHYSICAL GLASSWARE MADE ACCORDING TO SPECIFICATION; ADAPTERS; ALKALIMETERS; APPARATUS FOR DETERMINATION OF THE PERCENTAGE OF MATTER IN SOLUTION; BOTTLES; BULBS; BURETTES; BURETTE ACCESSORIES; CONDENSERS; GRADUATED CYLINDERS; APPARATUS FOR EXTRACTION BY TREATMENT WITH A SOLVENT; GAS APPARATUS; SYPHONS; PIPETTES; TUBES; SPECIAL TEST TUBES; VAPOR DENSITY APPARATUS; VAN SLYKE APPARATUS