DIN EN 61779-3 (2001-07)被替代
Electrical Apparatus For The Detection And Measurement Of Flammable Gases - Part 3: Performance Requirements For Group 1 Apparatus Indicating A Volume Fraction Up To 100% Methane In Air
出版：German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻
Gives the requirements for group 1 portable, transportable and fixed apparatus for detecting and measuring the methane concentrations in mine air. This apparatus, or parts of apparatus are meant for use in mines susceptible to firedamp. Applicable to apparatus meant for detecting and measuring the volume ratios of methane in air from a volume fraction of 0% up to 100%.
Supersedes DIN EN 50056 and DIN IEC 31L-30-CDV. (07/2001)
BS EN 61779-3:2000 - Identical
SN EN 61779-3:2000 - Identical
VDE 0400-3:2001 - Identical
NF EN 61779-3:2005 - Identical
I.S. EN 61779-3:2003 - Identical
NBN EN 61779-3:2001 - Identical
IEC 61779-3 Ed. 1.0 - Identical
UNE EN 61779-3:2002 - Identical
SS EN 61779-3 Ed. 1 (2000) - Identical
