Vacuum--means pressure which is reduced below the pressure of the atmosphere.
Ill. Admin. Code tit. 62, § 240.1000
Added at 19 Ill. Reg. 10981, effective July 14, 1995
Vacuum--means pressure which is reduced below the pressure of the atmosphere.
Ill. Admin. Code tit. 62, § 240.1000
Added at 19 Ill. Reg. 10981, effective July 14, 1995