Specifications include, but are not limited to: Acetylene gas, Purified Atomic Absorption Spectroscopy, 350 cu ft cylinder, CGA-300 fitting CUFT AIRUHP, AIR UHP Grade, 260 cu ft cylinder, CGA-590 fitting CUFT Air, Breathing Quality, 260 cu ft cylinder, CGA-346 fitting CUFT Air, Zero Grade, Less than 1ppm THC, 260 cu ft cylinder, CGA-590 fitting CUFT Argon, Refrigerated Liquid, 180L cylinder, 5373 cu ft capacity, CGA-580 fitting CUFT Argon, Refrigerated Liquid, 265L cylinder, 7873 cu ft capacity, CGA-590 fitting CUFT Argon, UHP Grade, 240 cu ft cylinder, CGA-580 fitting CUFT Carbon Dioxide, Industrial Grade, 50 lbs per cylinder, CGA-320 fitting CUFT Helium, UHP Grade, 219 cu ft cylinder, CGA-580 fitting CUFT Helium, UHP Grade, 99.999 percent pure, 291 cu ft cylinder, CGA-580 fitting CUFT Helium, UPC Grade, 291 cu ft cylinder, CGA-580 fitting CUFT Hydrogen, Industrial Grade, 229 cu ft cylinder, CGA-350 fitting CUFT Hydrogen, UHP Grade, 229 cu ft cylinder, CGA-350 fitting CUFT Hydrogen, Zero Grade, 229 cu ft cylinder, CGA-350 fitting CUFT Argon Methane mix, 90% Argon, 10% Methane, 230 cu ft cylinder, CGA-350 fitting CUFT Argon Methane mix, 90% Argon, 10% Methane, 246 cu ft cylinder, CGA-350 fitting CUFT Argon Hydrogen mix, 95% Argon, 5% Hydrogen, 300 cu ft cylinder, CGA-350 fitting CUFT Liquid Nitrogen, Refrigerated, 160L cylinder, CGA-580 fitting LITER Liquid Nitrogen, Refrigerated, Low Pressure, 180L cylinder, CGA-580 fitting LITER Nitrogen, UHP Grade, (Ultra High Purity), 225 cu ft cylinder, CGA-580 fitting CUFT Nitrogen, UHP Grade, (Ultra High Purity), 99.99% pure with less than 5ppm O2, 1ppm Hydrocarbons, 5ppm moisture, 0.5 ppm CO, 300 cu ft cylinder, CGA-580 fitting CUFT Nitrogen, Zero Grade, Prepurified, 99.995% pure, 225 cu ft cylinder, CGA-580 fitting CUFT Argon, UHP, 99.999% Pure, Impurities must be less than 4ppm N2, 1ppm O2, 4ppm H2, 1ppm CO2, 0.5ppm THC, and 1ppm H2O, 337 cu ft cylinder, CGA-580 fitting CUFT Pure Zero Air, 300 cu ft cylinder, CGA-580 fitting CUFT EPA Protocol Gas containing: 50 ppm SO2 and 50 ppm NO in balance of Nitrogen. Gases shall have a blend tolerance of plus or minus 5% and an analytical accuracy of plus or minus 1%. Cylinders shall not contain more than 0.5 ppm NO2. Gases must be directly traceable to NTRM or NIST gas reference standards. Gases must be supplied with a Certificate of Accuracy listing concentrations, traceability, and expiration date. Gases must be certified for 24 months and be supplied in nominal 150 cubic foot aluminum cylinder equipped with a CGA No. 660 cylinder valve outlet. CUFT