Record Keeping - Exposure Measurements

The employer should establish and maintain an accurate record of all measurements required. This record should include the following information:

• The dates, number, duration, and results of each of the samples taken, including a description of the procedure used to determine representative employee exposures
• A description of the sampling and analytical methods used
• A description of the type of respiratory protective devices worn, if any
• The name, Social Security number, job classification, and exposure levels of the monitored employee and all other employees whose exposure the measurement is intended to represent

The employer is required to maintain this record for at least 30 years.

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