Intrinsically safe and 'approved' electrical apparatus for use in certain specified atmospheres
By: list of certificates issued by H.M. Chief Inspector of Factories.
Contributors: Great Britain. Dept. of Employment and Productivity.
Edition: 8th ed.
Publisher: H.M.S.O.
Published: 1968
Place of publication: London
Language: eng
Number of pages: 45
Subjects: Electric apparatus and appliances -- Safety measures.
Notes: At head of title: Dept. of Employment and Productivity.