OSHA A GUIDE TO CONDUCTING NEGATIVE EXPOSURE ASSESSMENT

OSHA • A GUIDE TO CONDUCTING NEGATIVE EXPOSURE ASSESSMENT

INITIAL EXPOSURE ASSESSMENT Must be conducted by a Competent Person before the initiation of any work covered by 29 CFR 1926. 1101 Class of work: Class III Class IV Type of Asbestos Containing Material: __________________ Condition of ACM: Intact Non-intact Type and percent of asbestos: _____________________ Indicate Specific or Alternative control Methods: Specific Control Methods Alternative Control Methods Describe Control Methods: ___________________________________________________________________ Employee’s Training: Class III Class IV Environmental Conditions: _______________________ THIS ASSESSMENT IS: NEGATIVE POSITIVE COMPETENT PERSON: _______________________ PROJECT: __________________ DATE: ______

NEGATIVE EXPOSURE ASSESSMENT OBJECTIVE DATA Who developed the objective data? _____________________________________________________ When was the Objective Data developed? __________________________________________________ Average monitoring results: TWA: ________ EL: ________ Is the Objective Data statistically reliable? _________________ Attach Objective Data including pump calibration data.

NEGATIVE EXPOSURE ASSESSMENT HISTORICAL DATA Was the data obtained within the last 12 months? Yes Was the data for both the TWA and EL? Was prior monitoring and analysis performed correctly? No Yes No No Were work procedures and controls the same? Yes No Please describe: ___________________________ Was the material the same? Yes No Please describe: ___________________________ Were the environmental conditions the same? Yes No Please describe: ____________________________________________________________ Prior monitoring below the PEL’s? Yes No Worker training & experience the same? Yes No Document: ______________________________________________________________ If you answered “no” to any question, you may not base your NEA on Historical Data.

NEGATIVE EXPOSURE ASSESSMENT INITIAL MONITORING OF THIS JOB Were air samples taken from the workers breathing zone, representative of an 8 hour time weighted average and including a 30 minute exposure? Yes No Attach data. Were the operations most likely to cause exposure above a PEL monitored? Yes No Describe operations: ___________________________________________________________ Were the samples analyzed according to the standard? Yes No Were the results below the PEL’s? Yes No Note results here: ____________________________________________________________ TWA: ________ EL: _________ Date(s) of air monitoring: ________________________ If you answered “no” to any question, you may not base your NEA on Air Monitoring Data.