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AENOR - UNE-EN 50057

ELECTRICAL APPARATUS FOR THE DETECTION AND MEASUREMENT OF COMBUSTIBLE GASES. PERFORMANCE REQUIREMENTS FOR GROUP II APPARATUS INDICATING UP TO 100% LOWER EXPLOSIVE LIMIT.

inactive, Most Current
Organization: AENOR
Publication Date: 18 November 1999
Status: inactive
ICS Code (Electrical apparatus for explosive atmospheres): 29.260.20

Document History

UNE-EN 50057
November 18, 1999
ELECTRICAL APPARATUS FOR THE DETECTION AND MEASUREMENT OF COMBUSTIBLE GASES. PERFORMANCE REQUIREMENTS FOR GROUP II APPARATUS INDICATING UP TO 100% LOWER EXPLOSIVE LIMIT.
A description is not available for this item.
UNE-EN 50057
October 24, 1994
ELECTRICAL APPARATUS FOR THE DETECTION AND MEASUREMENT OF COMBUSTIBLE GASES. PERFORMANCE REQUIREMENTS FOR GROUP II APPARATUS INDICATING UP TO 100% LOWER EXPLOSIVE LIMIT.
A description is not available for this item.

References

This document is superseded by:
UNE-EN 61779-4 - Electrical apparatus for the detection and measurement of flammable gases. Part 4: Performance requirements for group II apparatus indicating a volume fraction up to 100% lower explosive limit.
Published by AENOR on November 20, 2002
A description is not available for this item.
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