BS EN 50057:1991

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Electrical apparatus for the detection and measurement of combustible gases. Performance requirements for Group II apparatus indicating up to 100 % lower explosive limit. | Status: Revised, Withdrawn

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Publisher BS

File size 894.75 KB

Pages 12

Format PDF

Publication date 1991-12-20

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File size 894.75 KB

Pages 12

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Publication date 1991-12-20

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