N.H. Code Admin. R. Env-A 1204.60
Current through Register No. 25, June 20, 2024
"Vapor-mounted seal" means a primary seal mounted so there is an annular vapor space underneath the seal, which space is bounded by the bottom of the primary seal, the tank wall, the liquid surface, and the floating roof.
N.H. Code Admin. R. Env-A 1204.60
(See Revision Note at chapter heading for Env-A 1200) #9933, eff 6-1-11