N.H. Code Admin. R. Env-A 1203.60
"Open top vapor degreaser" means a batch process for degreasing metal surfaces by condensing hot VOL solvent vapor onto colder metal parts.
Source. (See Revision Note at chapter heading for Env-A 1200) #9933, eff 6-1-11; ss by #12899, eff 10-17-19