IEC 61779-4 Ed. 1.0被替代
Electrical apparatus for the detection and measurement of flammable gases Part 4: Performance requirements for group II apparatus indicating up to 100% lower explosive limit
出版：International Electrotechnical Committee
专家解读视频
Specifies requirements for group II (as defined in part 1) portable, transportable and fixed apparatus for the detectino and measurement of combustible gas or vapour concentrations with air. The apparatus, or parts thereof, may be installed or used in potentially explosive atmospheres, other than mines susceptible to firedamp (i.e. group I). This standard is restricted to apparatus intended for the detection and measurement of combustible gas or vapour concentrations with air up to 100% lower explosive limit (LEL).
NEN EN IEC 61779-4:2000 - Identical
SS EN 61779-4 Ed. 1 (2000) - Identical
AS/NZS 61779.4:2000 - Identical
I.S. EN 61779-4:2000 - Identical
VDE 0400-4:2001 - Identical
ISA 12.13.01:2003 - Identical
NF EN 61779-4:2005 - Identical
OVE/ONORM EN 61779-4:2001 - Identical
DIN EN 61779-4 (2001-07) - Identical
BS EN 61779-4:2000 - Identical
SN EN 61779-4:2000 - Identical
CEI EN 61779-4 Ed. 3 (2001) - Identical
UNE EN 61779-4:2002 - Identical
