* Units

* Custodian's ID (i.e., employee number)

* Custodian's first and last name

* Custodian's telephone extension

* Container (if appropriate)

* Date

An inventory shall be sufficiently detailed to ensure the safety basis envelope of each facility where beryllium is used is not exceeded.

3.5.5 Exposure Monitoring

Initial Monitoring

In areas that may have airborne beryllium, initial personal breathing zone sampling shall be conducted to determine workers' 8-hour, time-weighted average exposure. Sufficient numbers of samples shall be taken to adequately characterize exposures. Work supervisors, workers, and the ES

Periodic Monitoring

When personal exposures equal or exceed the AL, sampling shall be performed periodically, i.e., at least quarterly for routine operations. Infrequent operations, i.e., operations that occur less than quarterly, shall be sampled each time they are performed.

Additional Monitoring

When work operations, maintenance, or procedures change, or when there is any reason to believe that such a change has occurred, additional monitoring shall be conducted.

3.5.6 Safety Documents