BS EN 61779-4:2000被替代
Electrical apparatus for the detection and measurement of flammable gases. Performance requirements for group II apparatus indicating a volume fraction up to 100% lower explosive limit
出版：British Standards Institution
专家解读视频
Gives the requirements for group II, portable, transportable and fixed apparatus for detecting and measuring combustible gas or vapour concentrations with air. The apparatus, or parts of apparatus, may be used or installed in potentially explosive atmospheres, except mines that are susceptible to firedamp. Applicable to apparatus meant for detecting and measuring combustible gas or vapour concentrations with air up to 100% lower explosive limit (LEL).
© British Standards Institution 2013
SS EN 61779-4 Ed. 1 (2000) - Identical
UNE EN 61779-4:2002 - Identical
IEC 61779-4 Ed. 1.0 - Modified
NBN EN 61779-4:2001 - Identical
I.S. EN 61779-4:2000 - Identical
NF EN 61779-4:2005 - Identical
DIN EN 61779-4 (2001-07) - Identical
SN EN 61779-4:2000 - Identical
DIN EN 61779-4:2001 - Identical
SN EN 61779-4 : 2000 - Identical
I.S. EN 61779-4:2000 - Identical
UNE EN 61779-4 : 2002 - Identical
NF EN 61779-4 : 2005 - Identical
IEC 61779-4 : 1.0 - Identical
DIN EN 61779-4 : 2001 - Identical
NBN EN 61779-4 : 2001 - Identical
EN 61779-4 : 2000 - Identical
SN EN 61779-4 : 2000 - Identical
DIN EN 61779-4 : 2001 - Identical
NF EN 61779-4 : 2005 - Identical
UNE EN 61779-4 : 2002 - Identical
NBN EN 61779-4 : 2001 - Identical
I.S. EN 61779-4:2000 - Identical
