Secretary of State's guidance - exfoliation of vermiculite and expansion of perlite.
Contributors: Great Britain. Scottish Office.; Great Britain. Welsh Office.
Series: Process guidance note -- PG3/7(91)
Publisher: H.M.S.O.
Published: 1991
Place of publication: London
Language: eng
Subjects: Great Britain.
Other titles: Processes prescribed for air pollution control by Local Authorities.
Notes: Dated July 1991.

At head of title: Department of the Environment, Scottish Office, Welsh Office.