Q649. Hermetic seals should not leak. Do we include the quantity of SF6 contained in hermetically sealed equipment when determining applicability under subpart DD?
A649. No, hermetically sealed-pressure equipment is excluded when determining if you exceed the reporting threshold of 17,820 pounds according to 98.301(a). However, the calculation parameters specified in equation DD-1 do include the quantity of SF6 contained in hermetically sealed equipment, so information on hermitically sealed equipment is included in the reporting requirements for subpart DD.
Updated on
Source: EPA (David Jacobson, 3/20/2012)
Approval / Publishing History: Version 1
Expiration: none
Relevant Subpart: DD
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