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MOSH Pocket Guide to Chemical Hazards Page 1 of 2 <br /> NIOSH Pocket Guide to Chemical Hazards <br /> Chromium(111) compounds (as Cr) CAS <br /> RTECS <br /> Synonyms &Trade Names DOT ID&Guide <br /> Synonyms vary depending upon the specific Chromium(lil) <br /> compound. [Note: Chromium(III) compounds include soluble chromic <br /> salts.] <br /> NIOSH REL:TWA 0.5 mg/m3 See Appendix C <br /> Exposure <br /> Limits OSHA PEL:TWA 0.5 mg/m3 See AD endix C <br /> IDLH 25 mg/m3[as Cr(III))See:cQm3 Conversion <br /> Physical Description <br /> Appearance and odor vary depending upon the specific compound. <br /> Properties vary depending <br /> upon the specific compound. <br /> Incompatibilities&Reactivities <br /> Varies <br /> Measurement Methods <br /> NIOSH 7024:OSHA 1D121. ID125G <br /> See:NMAM or OSHA Methods <br /> Personal Protection&Sanitation First Aid(See procedures) <br /> Skin:Prevent skin contact Eye:irrigate immediately <br /> Eyes: Prevent eye contact Skin:Water flush promptly <br /> Wash skin:When contaminated Breathing:Respiratory support <br /> Remove:When wet or contaminated Swallow:Medical attention immediately <br /> Change:No recommendation <br /> Important additional information about respirator selection <br /> Respirator Recommendations NIOSH/OSHA <br /> Up to 2.5 mglm3:(APF=5)Any dust and mist respirator` <br /> Up to 5 mglm3:(APF= 10)Any dust and mist respirator except single-use and quarter-mask respirators*/(APF=10)Any <br /> supplied-air respirator* <br /> Up to 12.5 mg/m3:(APF=25)Any supplied-air respirator operated in a continuous-flow mode*/(APF=25)Any powered, <br /> air-purifying respirator with a dust and mist filter* <br /> Up to 25 mg/m3:(APF=50)Any air-purifying,full-facepiece respirator with a high-efficiency particulate filter/(APF=50) <br /> Any powered,air-purifying respirator with a fight-fitting facepiece and a high-efficiency particulate filter*/(APF=50)Any <br /> self-contained breathing apparatus with a full facepiece/(APF=50)Any supplied-air respirator with a full facepiece <br /> Emergency or planned entry into unknown concentrations or IDLH conditions:(AFF=10,000)Any self-contained <br /> breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(APF <br /> =10,000)Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive- <br /> pressure mode in commination with an auxiliary self-contained positive-pressure breathing apparatus <br /> Escape:(APF=50)Any air-purifying,full-facepiece respirator with a high-efficiency particulate filter/Any appropriate <br /> escape-type,self-contained breathing apparatus <br /> Exposure Routes inhalation,ingestion,skin and/or eye contact <br /> Symptoms Irritation eyes;sensitization dermatitis <br /> Target Organs Eyes,skin <br /> See also: INTRODUCTION See MEDICAL.TESTS:0052 <br /> hq://www.cdc.gov/niosh/npg/npgd0140.hbW 2/7/2005 <br />