Harmonized system of quality assessment for electronic components: Sectional specification: Single and double sided printed boards with plated through holes— 32 стр.
Electrical apparatus for explosive gas atmospheres - Part 18: Construction, test and marking of type of protection encapsulation "m" electrical apparatus— 63 стр.
Electrical apparatus for explosive gas atmospheres. Construction, test and marking of type of protection encapsulation "m" electrical apparatus— 38 стр.