7000 HARDESON RD 2024-12-30 - Laserfiche WebLink

�PRAXAIR Praxair Material Safety Data Sheet 6/ukin�nta•plrutet mwt ptrxkrc7ive" Product: Hydrogen, Compressed SDS No. P-4604-H March 2012 Environmental Precautions. Prevent waste from contaminating the surrounding environment. Discard any product, residue, disposable container, or liner in an environmentally acceptable manner, in full compliance with federal, state, and local regulations. If necessary, call your local supplier for assistance. 7. Handling and Storage PRECAUTIONS TO BE TAKEN IN HANDLING: Keep away from heat, sparks, and open flame. Use only spark-proof tools and explosion-proof equipment. Protect cylinders from damage. Use a suitable hand truck to move cylinders; do not drag, roll, slide, or drop. Hydrogen is the lightest known gas. It may leak out of systems that are air-tight for other gases and may collect in poorly ventilated upper reaches of buildings. Leak check system with soapy water; never use a flame. All piped hydrogen systems and associated equipment must be grounded. Electrical equipment must be non-sparking or explosion-proof. Do not crack or open hydrogen cylinder valves unless connected to utilization equipment; escaping gas may ignite spontaneously. Open valve slowly. If valve is hard to open, discontinue use and contact your supplier. Close cylinder valve after each use; keep closed even when empty. Never attempt to lift a cylinder by its cap;the cap is intended solely to protect the valve. Never insert an object (e.g., wrench, screwdriver, pry bar) into cap openings; doing so may damage the valve and cause a leak. Use an adjustable strap wrench to remove over-tight or rusted caps. For other precautions in using hydrogen, see section 16. PRECAUTIONS TO BE TAKEN IN STORAGE: Store and use with adequate ventilation. Store only where temperature will not exceed 1250F (520C). Post "No Smoking or Open Flames" signs in storage and use areas. There must be no sources of ignition. Separate packages and protect against potential fire and/or explosion damage following appropriate codes and requirements (e.g., NFPA 30, NFPA 55, NFPA 70, and/or NFPA 221 in the U.S.) or according to requirements determined by the Authority Having Jurisdiction (AHJ). Always secure cylinders upright to keep them from falling or being knocked over. Install valve protection cap, if provided, firmly in place by hand when the cylinder is not in use. Store full and empty cylinders separately. Use a first-in, first-out inventory system to prevent storing full cylinders for long periods. RECOMMENDED PUBLICATIONS: For further information on storage, handling, and use, see Praxair publication P-14-153, Guidelines for Handling Gas Cylinders and Containers. Obtain from your local supplier. For further information specific to hydrogen, see NFPA 50A, Standard for Gaseous Hydrogen Systems at Consumer Sites, published by the National Fire Protection Association, www.nfpa.org. Copyright 1980, 1986, 1992, 1997, 2000, 2004, 2007, 2012, Praxair Technology, Inc. All rights reserved. Page 4 of 10 FA vertical line in the left margin indicates revised or new material.