Hydrocarbons purged during refinery shutdowns and startups which should be piped to storage systems
for safe venting, flaring or
recovery. This term also applies to the purging of water in boiler operation, and serves in
the control of dissolved solids in the boiler water.
Source:
PAC, 1990, 62, 2167
(Glossary of atmospheric chemistry terms (Recommendations 1990))
on page 2176