Laboratory equipment and accessories, namely, gas chromatographs, atomic absorption spectrophotometers, UV-VIS spectrophotometers, total carbon analyzers, sulphur analyzers, high performance liquid chromatographs, inductively coupled plasma spectrophotometers, shakers, balances, ovens, centrifuges, conductivity meters, dissolved oxygen meters, pH meters, furnaces, ion selective meters, titrators, heating mantles, stirrers, incubators, microscopes, turbidity meters, mixers, homogenizers, sample concentrators, ultrasonic cleaning baths, sleeve shakers, sieve shakers, flash point tester, melting point apparatus, viscometers, leaching test apparatus, air sampling monitors, respirometers, beakers, bottles, flasks, sample vials, Bunsen burners, crucibles, optical filters, pipettes, evaporating dishes, condensers, desiccators, forceps, test tubes, drying tubes, thermometers, reactionating columns, bottle stoppers, U-tubes, tripods, retort stands, retort rods, retort rings, microscope slides, microscope glass slide covers, microscope slide boxes, tongs, trays, trolleys, rubber tubing, neoprene tubing, vacuum tubing, tubing disconnectors, eye shield spectacles, goggles, respirators other than for artificial respiration, disposable latex gloves, safety shields, sample dippers, refractometers, absorptiometers, chloride analyzers, moisture analyzers, CO analyzers, water analyzers, anemometers, barometers, mercury collectors, Petri dishes, pipette racks, scoops, spatulas, disposable reusable dispenser syringes and needles, pipettors, carboys, cell culture apparatus, colorimeters, comparators, cellulose membranes, flash point testers, cloud and pour flash point testers, copper test meters, measuring cups, density meters, dew point meters, scalpels, sample dividers, block heaters, flame photometers, flint lighters, flocculation testers, magnifiers, filter papers, electrodes, circulators, hygrometers, hydrometers, photometers, hardness testers, pressure recorders, hygrographs, immersion heaters, immersion coolers, infra-red spectrophotometers, inoculators, accumulator jars, flame photometers, slide dispensers, laboratory jacks, gas lighters, microplates, transport containers, radiation meters, temperature meters, sound level meters, Nessler tubes, Nessler cylinders, nitrogen determination sensors, non-return valves, oxygen determination sensors, particle size testers, timers, reaction vessels, refuse bins, gas sampling bags, refuse sacks, safety screens, sieves, wet gas meters, and volt meters