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NIOSH Pocket Guide to Chemical Hazards Page 1 of 2 <br /> NIOSH Pocket Guide to Chemical Hazards <br /> Lead ICAS 7439-92-1 <br /> Pb RTECS OF7525000 <br /> Synonyms &Trade Names DOT ID&Guide <br /> Lead metal, Plumbum <br /> NIOSH REL*:TWA 0.050 mg/m3 See Appendix C[*Note:The REL also applies to other <br /> Exposure lead compounds(as Pb) -see Appendix C.] <br /> L i m iitsOSHA PEL*:[1910.1025]TWA 0.050 mg/m3 See Appendix C[*Note:The PEL also applies <br /> Ito other lead compounds(as Pb)—sea Appendix C.] <br /> ID LH 100 mg1m3(as Pb)See:7439921 Conversion <br /> Physical Description <br /> A heavy,ductile,soft,gray solid. <br /> MW:207.2 BP:3164°F MLT:621-F Sol:Insoluble <br /> VP:0 mmHg(approx) IP:NA �I jjSp.Gr:11.34 <br /> FI.P:NA UEL:NA LEL:NA <br /> Noncombustible Solid in bulk form. <br /> Incompatibilities&Reactivities <br /> Strong oxidizers, hydrogen peroxide,acids <br /> Measurement Methods <br /> NIOSH 7082.7105.7300,7700,7701,7702,9100,9105:OSHA 1D121. ID125G. ID206 <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:Soap flush promptly <br /> Wash skin:Daily Breathing:Respiratory support <br /> Remove:When wet or contaminated Swallow:Medical attention immediately <br /> Change:Daily <br /> Important additional information about respirator selection <br /> Respirator Recommendations NIOSH/OSHA <br /> Up to 0.5 mglm3:(APF=10)Any air-purifying respirator with a high-efficiency particulate filterl(APF=10)Any supplied-air <br /> respirator <br /> Up to 1.25 mg/m3:(APF=25)Any supplied-air respirator operated in a continuous flow mode/(APF=25)Any powered, <br /> air-purifying respirator with a high-efficiency particulate filter <br /> Up to 2.5 mg1m3:(APF=50)Any air-purifying,full-facepiece respirator with a high-efficiency particulate filter/(APF=50) <br /> Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow model(APF=50)Any <br /> powered,air-purifying respirator with a tight-fitting facepiece and a high-efficiency particulate filter/(APF=50)Any self- <br /> contained breathing apparatus with a full facepiece/(APF=50)Any supplied-air respirator with a full facepiece <br /> Up to 50 mg/m3:(APF=1000)Any supplied-air respirator operated in a pressure-demand or other positive-pressure mode <br /> Up to 100 mg1m3:(APF=2000)Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand <br /> or other positive-pressure mode <br /> Emergency or planned entry into unknown concentrations or IDLH conditions:(APF=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 combination 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 Lassitude(weakness,exhaustion),insomnia;facial pallor;anorexia,weight loss,malnutrition;constipation, <br /> abdominal pain,colic;anemia;gingival lead line;tremor;paralysis wrist,ankles;encephalopathy;kidney disease;irritation <br /> http://www.cdc.gov/niosh/npg/npgd0368.html 2/7/2005 <br />