• Advanced Specialty Gases, Inc. - Offers high purity inert, fluorinated and hydrocarbon gases and gas mixtures. Material safety data sheets for all products.
• Chemgas - Provides isotopic noble gases and laser gas mixtures.
• Conley Gas, Inc. - Supplier of pure gases to serve the specialty gas industry with multiple locations in the United States. Offers technical and shipping information on products.
• Gasco Affiliates llc - Provides precision gas mixtures for gas detectors, to NIST standards, for flow regulators, gas generators. Enables accurate calibration of monitors.
• GG Gastec e.K. - German company specializing in the trade of xenon, also offering procurement of other specialty gases and gas distribution and storage equipment.
• GHC Gerling, Holz & Co. - Manufactures and supplies refrigerants, specialty gases, and high-purity hydrocarbons, as well as antifreeze products and ion-exchange resins, and provides related services and equipment. Located in Germany.
• Matheson Tri-Gas - Supplier of gases and gas handling equipment to meet the needs of the semiconductor, analytical and industrial markets.
• MESA Specialty Gas & Equipment - Global supplier of specialty gases, calibration gas, rare gases, hydrocarbon gas standards for instrument calibration. Additional products include specialty gas regulators and specialty gas equipment. Santa Ana, California.
• Mesa Specialty Gases & Equipment - Supplies calibration standards to the refinery and petrochemical industries. Products include refinery standards, environmental standards, instrument-grade pure gases, and associated equipment. Based in California.
• Nova Gas Technologies, Inc. - Manufacturer of excimer laser gas mixtures for semiconductor manufacturing and vision correction systems. USA.
• SAES Pure Gas Technologies - Develops ultra pure gas handling equipment for the semiconductor and other high technology markets, supplying gas purifiers and analyzers for many bulk and specialty gas applications.
• Scott Specialty Gases - International producer and supplier of all types of high-purity gases, gas mixtures, gas generators, and gas handling equipment for industrial, scientific, laboratory, electronics, medical, environmental, and petrochemical applications. Includes product specifications and online ordering.
• Spec Gas Incorporated - Manufacturer of high-purity noble gases and calibration standards in disposable cylinders for point-of-use applications. Also sells regulators and valves, and refills customer-owned cylinders. Located in Pennsylvania.
• Specialty Gas Report - Serving the needs of specialty gas distributors and laboratory managers.
• Spectra Gases - Manufacturer of rare, excimer laser, stable isotopic and environmental gases and gas mixtures.

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