« Back to Glossary Index
A pressure below atmospheric pressure. A perfect vacuum is 30 inches of mercury (periodic symbol “Hg”)
Call Us
(216) 531-5202
Ask For Joe 24/7 Emergency Service
(216) 210-7703
Call Us
(216) 531-5202
Ask For Joe 24/7 Emergency Service
(216) 210-7703
A pressure below atmospheric pressure. A perfect vacuum is 30 inches of mercury (periodic symbol “Hg”)