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'ICSC:NENG0294 International Chemical Safetys(WHO/IPCS/ILO)... 1,.,O'/www.cdc.gov/niosh/ipcsneng/nengO291.htmI <br /> on liquid. IUN Hazard Class:2.1 <br /> SEE IMPORTANT INFORMATION ON BACK <br /> Prepared in the context of cooperation between the International Programme on Chemical Safety&the Commission <br /> ICSC: 0291 of the European Communities(C)IPCS CEC 1994.No modifications to the International version have been made <br /> except to add the OSHA PELs,NIOSH RELs and NIOSH 1DLH values. <br /> International Chemical Safety Cards <br /> METHANE ICSC: 0291 <br /> _ ....... <br /> I PHYSICAL STATE;APPEARANCE: ROUTES OF EXPOSURE: <br /> COLOURLESS,COMPRESSED OR LIQUEFIED The substance can be absorbed into the body by <br /> M GAS,WITH NO ODOUR. inhalation. <br /> P PHYSICAL DANGERS: INHALATION RISK: <br /> The gas is lighter than air. On loss of containment this gas can cause <br /> O suffocation by lowering the oxygen content of the <br /> CHEMICAL DANGERS: air in confined areas. <br /> R <br /> EFFECTS OF SHORT-TERM EXPOSURE: <br /> T OCCUPATIONAL EXPOSURE LIMITS: Rapid evaporation of the liquid may cause frostbite. <br /> TLV: (aliphatic hydrocarbons gases,Alkane C1-C4) <br /> A 1000 ppm EFFECTS OF LONG-TERM OR REPEATED <br /> (as TWA) EXPOSURE: <br /> N (ACGIH 2005). <br /> MAK not established. <br /> T <br /> D <br /> A <br /> T <br /> A <br /> ........_ <br /> Boiling point:-161°C Flash point:Flammable Gas <br /> PHYSICAL Melting point:-I 83'C Auto-ignition temperature: 537°C <br /> PROPERTIES Solubility in water,ml/100 ml at 20°C:3.3 Explosive limits,vol%in air:5-15 <br /> Relative vapour density(air= 1):0.6 Octanol/water partition coefficient as log Pow: 1.09 <br /> ENVIRONMENTAL. <br /> DATA <br /> ....... <br /> _.... .... . .................._... <br /> NOTES <br /> _ ...... .............................. <br /> ............._. ...__ .... _._.......... _...., _........ <br /> Density of the liquid at boiling point.0.42 kg/1.High concentrations in the air cause a deficiency of oxygen with the risk of <br /> unconsciousness or death.Check oxygen content before entering area.Turn leaking cylinder with the leak up to prevent escape of <br /> gas in liquid state.After use for welding,turn valve off,regularly check tubing,etc.,and test for leaks with soap and water.The <br /> measures mentioned in section PREVENTION are applicable to production,filling of cylinders,and storage of the gas.Other UN <br /> number: 1972(refridgerated liquid),Hazard class:2.1.Card has been partly updated in October 2005. See section Emergency <br /> Response. <br /> Transport Emergency Card:TEC(R)-20G1 F <br /> NFPA Code:H 1;F 4;R 0; <br /> ADDITIONAL INFORMATION <br /> 2 of 3 5/17/2011 3:05 PM <br />