40 CFR Appendix Table 4 to Subpart IIIII of Part 63 - Table 4 to Subpart IIIII of Part 63—Work Practice Standards—Requirements for Mercury Liquid Collection

Table 4 to Subpart IIIII of Part 63—Work Practice Standards—Requirements for Mercury Liquid Collection

As stated in § 63.8192, you must meet the work practice standards in the following table:

You must collect liquid mercury from . . . At the following intervals When collecting the mercury, you must meet these requirements
1. Open-top containers a. At least once each 72 hours i. If you spill liquid mercury during collection or transport, you must take the action specified in Table 3 to this subpart for liquid mercury spills and accumulations ii. From the time that you collect liquid mercury into a temporary container until the time that you store the liquid mercury, you must keep it covered by an aqueous liquid iii. Within 4 hours from the time you collect the liquid mercury, you must transfer it from each temporary container to a storage container that meets the specifications in Table 1 to this subpart.
2. Vessels, low point drains, mercury knock-out pots, and other closed mercury collection points a. At least once each week See 1.a.i through iii above.
3. All other equipment a. Whenever maintenance activities require the opening of the equipment See 1.a.i. through iii above.