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QUITS USED TO DESCRIBE OCCUPATIONAL EXPOSURES TO HAZARDOUS <br /> SUBSTANCES INCLUDE: EXPOSURE LIMIT, ALSO KNOWN AS THE "THRESHOLD <br /> LIMIT VALUE" (TLV) , CEILING LIMIT, AND THE CONCENTRIkTION LEVEL <br /> THAT IS "IMMEDIATELY DANGEROUS TO LIFE AND HEALTH" (IDLH). THE <br /> B2299M LIMIT DEFINES THE MAXIMUM CONCENTRATION OF A SUBSTANCE TO <br /> WHICH ONE CAN BE EXPOSED DURING AN 8 HOUR PERIOD WITHOUT SUFFERING <br /> SIGNIFICANT HEALTH EFFECTS. THE CalljM LIKIT IS THE <br /> CONCENTRATION LEVEL THAT CANNOT BE EXCEEDED AT ANY TIME; i.e., A <br /> SUITABLE RESPIRATOR MUST BE WORN IF CONCENTRATION VALUES REACH THE <br /> CEILING LIMIT. THE REPRESENTS A MAXIMUM CONCENTRATION <br /> FROM WHICH ONE COULD ESCAPE WITHIN 30 MINUTES OF RELPIRATOR <br /> FAILURE WITHOUT EXPERIENCING ESCAPE-IMPAIRMENT OR IRREVERSIBLE <br /> HEALTH DAMAGE. IDLH VALUES ARE NOT LISTED FOR SUBSTANCES THAT ARE <br /> POTENTIAL HUMAN CARCINOGENS. <br /> ,$ S ANCEX�OSCTI,r; LIMIT CET YH.^, LIMIT jDrH <br /> BENZENE O.lppm (8hrs) 1ppm (15min) CARCINOGEN <br /> TOLUENE 100ppm (10hrs) 200ppm (10min) 2000ppm <br /> XYLENE 100ppm (8hrs) 200ppm (lOmin) 1000ppm <br /> F' ETHYL BENZENE 100ppm (8hrs) N.A. 2000apm <br /> ,.�'. <br /> TETRAETHYL LEAD 0.0067PPM N.A. 3.6ppm <br /> r ; <br /> PROLONGED EXPOSURES TO CONCENTRATIONS ABOVE THE LIMITS NOTED MAY <br /> AFFECT THE CENTRAL NERVOUS SYSTEM, CARDIOVASCULAR SYSTEM, <br /> RESPIRATORY SYSTEM, EYES, SKIN, KIDNEYS, BONES AND BONE MARROW. <br /> ;, RESEARCH HAS SHOWN THnT BENZENE IS A KNOWN CARCINOGEN. <br /> IMMEDIATE SYMPTOMS OF OVER-EXPOSURE INCLUDEE: EYE IRRITATION, NOSE <br /> AND THROAT IRRITATION, HEADACHE, NAUSEA, .DIZZINESS, DROWSINESS, <br /> WEAKNESS, CONFUSION, .EUPHORIA, EXCITEMENT, STAGGERED GAIT, <br /> ABDOMINAL PAIN, RESPIRATORY DIFFICULTIES, MUSCLE FATIGUE, AND <br /> COMA. <br /> DUE TO THE INHERENT PHYSICAL DANGER OF WORKING IN THE VICINITY OF <br /> MOVING HEAVY MACHINERY, ALL PERSONNEL WILL WEAR HARDHATS AND STEEL <br /> TOED FOOTWARE AT ALL TIMES. <br /> PERSONNEL EXPOSURES TO EXCESSIVE JOB-RELATED HAZARDS ARE EXPECTED <br /> TO BE MINIMAL USING THESE SAFEGUARDS. <br /> IT SHOULD BE NOTED THAT SUMMER TIME HEAT_MAY_INITIATE <br /> -WEATHER-T -- - _------STRESS=RELATED--PROBLEMS AND DECREASE PRODUCTIVITY ON THE JOB. SITS. <br /> SMOKING IS PROHIBITED''AROUND OR NEAR THE WORK ARER. <br />