VDE 0400-4:2001被替代
Electrical Apparatus For The Detection And Measurement Of Flammable Gases - Part 4: Performance Requirements For Group 2 Apparatus Indicating A Volume Fraction Up To 100% Lower Explosive Limit
出版：Verband Deutscher Elektrotechniker
专家解读视频
2001 [01/07/2001]1999 [01/07/1999]1993 [01/07/1993]
IEC 61779-4 : 1.0 - Identical
DIN EN 61779-4 : 2001 - Identical
EN 61779-4 : 2000 - Identical
DIN EN 61779-4 : 2001 - Corresponds
DIN EN 50057 : 1999 - Corresponds
IEC 61779-4 Ed. 1.0 - Identical
DIN EN 61779-4 (2001-07) - Identical
