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0.0015—23.5%Oxygen;0.0005%—2.5%Methane;0.0005—1.0%Carbon Monoxide;0.001—0.025%Hydrogen Sulfide;Nitrogen Gas balance <br /> 6.2 Environmental precautions <br /> . Avoid release to the environment. <br /> 6.3 Methods and material for containment and cleaning up <br /> Containment/Clean-up . Allow the gas mixture to dissipate. <br /> Measures If necessary, monitor the surrounding area (and the original area of the release) for <br /> concentrations of component gases. <br /> Concentrations of component gases must be below any exposure limits listed in <br /> Section 8 and Oxygen levels must be above 19.5% before non-emergency personnel <br /> are allowed to re-enter area. <br /> 6.4 Reference to other sections <br /> Refer to Section 8 - Exposure Controls/Personal Protection and Section 13 - Disposal <br /> Considerations. <br /> Section 7 - Handling and Storage <br /> 7.1 Precautions for safe handling <br /> Handling . Use good safety and industrial hygiene practices. Use only with adequate ventilation. <br /> Be aware of any signs of dizziness or fatigue, especially if work is done in a poorly <br /> ventilated area; exposures to fatal concentrations of this gas mixture could occur <br /> without any significant warning symptoms, due to olfactory fatigue or oxygen <br /> deficiency. Cylinders should be firmly secured to prevent falling or being knocked-over. <br /> Do not attempt to repair, adjust, or in any other way modify cylinders. If there is a <br /> malfunction or another type of operational problem, contact nearest distributor <br /> immediately. <br /> 7.2 Conditions for safe storage, including any incompatibilities <br /> Storage . Cylinders should be stored in dry, well-ventilated areas away from sources of heat, <br /> ignition and direct sunlight. Do not allow area where cylinders are stored to exceed <br /> 52°C (125T). Cylinders must be protected from the environment, and preferably kept <br /> at room temperature (approximately 21'C (70T). Cylinders should be firmly secured <br /> to prevent falling or being knocked-over. Protect cylinders against physical damage. <br /> Store locked up. <br /> 7.3 Specific end use(s) <br /> Refer to Section 1.2 - Relevant identified uses. <br /> Section 8 - Exposure Controls/Personal Protection <br /> 8.1 Control parameters <br /> Exposure Limits/Guidelines <br /> Result ACGIH Canada Ontario Canada Quebec China Germany DFG <br /> 20 mg/m3 MAC(high <br /> altitude area,2000- 30 ppm Peak; 35 <br /> Ceilings Not established Not established Not established 3000m); 15 mg/m3 mg/m3 Peak <br /> MAC(high altitude <br /> area, >3000m) <br /> Carbon monoxide 100 ppm STEV; 115 200 ppm STEV; 230 30 mg/m3 STEL(not <br /> (630-08-0) STELs Not established mg/m3 STEV mg/m3 STEV in high altitude area) Not established <br /> TWAs 25 ppm TWA 25 ppm TWAEV;29 35 ppm TWAEV;40 20 mg/m3 TWA(not Not established <br /> mg/m3 TWAEV mg/m3 TWAEV in high altitude area) <br /> MAKs Not established Not established Not established Not established 30 ppm MAK;35 <br /> mg/m3 MAK <br /> Methane TWAs 1000 ppm TWA 1000 ppm TWAEV Not established Not established Not established <br /> (74-82-8) <br /> Preparation Date: 10/August/2012 Format:EU CLP/REACH Language:English(US) <br /> Revision Date: 16/December/2013 Page 6 of 18 OSHA HCS 1994,WHMIS,UN GHS,EU CLP,EU DSD/ <br />