NEN EN 12411-4 : DRAFT 1997
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
WORKPLACE ATMOSPHERES - ELECTRICAL APPARATUS USED FOR THE DIRECT DETECTION AND DIRECT CONCENTRATION MEASUREMENT OF TOXIC GASES AND VAPOURS - PART 4: GUIDE FOR SELECTION, INSTALLATION, USE AND MAINTENANCE
31-05-2000
12-01-2013
Provides some background information and gives guidance on the selection, installation, use and maintenance of electrical apparatus used for the direct detection and concentration measurement of toxic gases and vapours in workplace air.
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