- Table W-5A to Subpart W of Part 98—Default Methane Leaker Emission Factors for Liquefied Natural Gas (LNG) Storage

Link to an amendment published at 89 FR 42326, May 14, 2024.
LNG storage Emission factor
(scf/hour/component)
If you survey using any of the methods in § 98.234(a)(1)
through (6)
If you survey using Method 21 as
specified in
§ 98.234(a)(7)
Leaker Emission Factors—LNG Storage Components, LNG ServiceValve1.190.23 Pump Seal4.000.73 Connector0.340.11 Other 11.770.99 Leaker Emission Factors—LNG Storage Components, Gas ServiceValve 214.849.51 Connector5.593.58 Open-Ended Line17.2711.07 Pressure Relief Valve39.6625.42 Meter and Instrument19.3312.39 Other 34.12.63

1 “Other” equipment type for components in LNG service should be applied for any equipment type other than connectors, pumps, or valves.

2 Valves include control valves, block valves and regulator valves.

3 “Other” equipment type for components in gas service should be applied for any equipment type other than valves, connectors, flanges, open-ended lines, pressure relief valves, and meters and instruments, as specified in § 98.232(g)(6) and (7).

[81 FR 86518, Nov. 30, 2016]