Presentation on theme: "Compressed Gas Cylinder Safety"— Presentation transcript:
1 Compressed Gas Cylinder Safety Environmental Health & SafetyChemical Safety DivisionUniversity of Texas Health Science Center at San Antonio
2 Classification of Gas Cylinders Flammable GassesOxygen and Oxidizing GasesAcid and Alkaline GasesHighly Toxic GasesCryogenic Liquefied GasesInert Gases
3 Segregation of Gas Cylinders FlammablesMethane, Propane, HydrogenReactiveAcetylene, Vinyl Chloride, TetrafluoroethyleneOxidizersHydrazine, HydrogenCorrosivesAmmonia, Methylamine, ChlorineOxygen and nitrous oxide cylinders must be separated from flammables by minimum of 20 feet.
4 Identification of Contents of Compressed Gas Cylinders Clearly label all cylindersLabels should be durableDo not accept cylinders that are not clearly labeledColor-coding is not a reliable means of identificationCylinder colors vary from supplier to supplierIf cylinder contents cannot be identified:Mark as “Contents Unknown”Contact the manufacturer
5 Transporting Gas Cylinders A cylinder cart should always be usedDo not roll, drag, or slide cylindersTransport cylinders with valve capsDo not lift cylinders by the capDo not transport with the regulator attachedCylinders must be fastened securely inupright position
6 Storage of Compressed Gas Cylinders Properly secure at all timesStraps, belts, or chainsKeep valve caps on unless the cylinderis being usedStore in a well ventilated areaKeep away from heat or ignition sourcesKeep away from electrical circuitsSegregate Oxygen cylinders (empty or full) from fuel-gas cylinders and combustible materials20 feet minimum distanceStore flammable gas cylinders away from oxygen, nitrous oxide cylinders, or oxygen charging facilities.Segregate full and empty cylindersLabel empty cylinders to prevent confusionEmpty cylinders should be returned to Central Receiving/Vendor
7 Use of Compressed Gas Cylinders Always use the proper regulator for the gas in the cylinderDo not allow oil or grease to come incontact with cylinders or valvesAttach the regulator securely beforeopening the valveOpen the cylinder valves SLOWLY; stand to the side of regulator when opening valveDo not attempt to repair cylinder valves while a cylinder contains gas pressure
8 Things Not To Do Never roll a cylinder to move it. Never carry a cylinder by the valve.Never leave an open cylinder unattended.Never leave a cylinder unsecured.Never grease or oil the regulator, valve, or fittings of an oxygen cylinder.Never refill a cylinder.Never use a flame to locate gas leaks.Never attempt to mix gasses in a cylinder.
10 Things to Remember Always wear eye protection when working with compressed gasesOnly use regulators that have both high and lowpressure gaugesNever refill a cylinder or use a cylinder forstoring any material.The greatest hazard to a user of compressed gases is asphyxiationRemember, except for oxygen and air, ALL GASIS AN ASPHYXIANT
11 QuestionsEnvironmental Health & Safety(210)1.343T DTL