Standard specifications for mechanical bar screens.
Contributors: Ontario. Ministry of the Environment.
Publisher: Ministry of the Environment
Published: 1990
Place of publication: Toronto
Language: eng
Subjects: Sewage -- Purification -- Screening -- Equipment and supplies.; Water -- Purification -- Screening -- Equipment and supplies.
Notes: "MOE spec. nos. 21 & 22, issue no. 1 January 1990."

Cover title.