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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 /> Ceilings Not established Not established Not established 10 mg/m3 MAC 10 ppm Peak; 14.2 <br /> mg/m3 Peak <br /> STELs 5 ppm STEL 15 ppm STEV;21 15 ppm STEV;21 Not established Not established <br /> Hydrogen sulfide mg/m3 STEV mg/m3 STEV <br /> (7783-06-4) 10 ppm TWAEV; 14 10 ppm TWAEV; 14 <br /> TWAs 1 ppm TWA mg/m3 TWAEV mg/m3 TWAEV Not established Not established <br /> MAKs Not established Not established Not established Not established 5 ppm MAK; 7.1 <br /> mg/m3 MAK <br /> Exposure Limits/Guidelines (Con't.) <br /> Result Germany TRGS NIOSH OSHA Singapore <br /> 30 ppm TWA <br /> TWAs (exposure factor 1); 35 35 ppm TWA;40 50 ppm TWA; 55 25 ppm PEL;29 mg/m3 <br /> Carbon monoxide mg/m3 TWA(exposure mg/m3 TWA mg/m3 TWA PEL <br /> (630-08-0) factor 1) <br /> Ceilings Not established 200 ppm Ceiling;229mg/m3 Ceiling Not established Not established <br /> STELs Not established Not established Not established 15 ppm STEL; 21 <br /> mg/m3 STEL <br /> Hydrogen sulfide TWAs Not established Not established Not established 10 ppm PEL; 14 mg/m3 <br /> (7783-06-4) PEL <br /> 10 ppm Ceiling(10 <br /> Ceilings Not established min); 15 mg/m3 Ceiling 20 ppm Ceiling Not established <br /> (10 min) <br /> 8.2 Exposure controls <br /> Engineering . Adequate ventilation systems as needed to control concentrations of airborne <br /> Measures/Controls contaminants below applicable threshold limit values. If this gas mixture is used in a <br /> poorly-ventilated area, install automatic monitoring equipment to detect the levels of <br /> component gases. <br /> Personal Protective Equipment <br /> Pictograms . *0 <br /> Respiratory . In case of insufficient ventilation, wear suitable respiratory equipment. Follow the <br /> OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. <br /> Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure <br /> limits are exceeded or symptoms are experienced. <br /> Eye/Face . Wear safety glasses. <br /> Skin/Body . Wear protective gloves leather gloves when handling cylinders; chemically resistant <br /> gloves when using this gas mixture and clothing . <br /> Environmental Exposure . Controls should be engineered to prevent release to the environment, including <br /> Controls procedures to prevent spills, atmospheric release and release to waterways. <br /> Key to abbreviations <br /> American Conference of Governmental Industrial PEL Permissible Exposure Level determined by the Occupational Safety <br /> ACGIH=Hygiene and Health Administration (OSHA) <br /> MSHA =Mine Safety and Health Administration STEL =Short Term Exposure Limits are based on 15-minute exposures <br /> NIOSH=National Institute of Occupational Safety and Health STEV =Short Term Exposure Value <br /> OSHA =Occupational Safety and Health Administration TWAEV=Time-Weighted Average Exposure Value <br /> MAK =Maximale Arbeitsplatz Konzentration is the maximum TWA =Time-Weighted Averages are based on 8h/day,40h/week exposures <br /> permissible concentration <br /> Preparation Date: 10/August/2012 Format:EU CLP/REACH Language:English(US) <br /> Revision Date: 16/December/2013 Page 7 of 18 OSHA HCS 1994,WHMIS,UN GHS,EU CLP,EU DSD/ <br />