UNE 21820:1989

ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES. INTRINSIC SAFETY "I".

STANDARD published on 22.5.1989

Spanish -
electronic design (pdf) (97.50 USD)

The information about the standard:

Designation standards: UNE 21820:1989
Note: WITHDRAWN
Publication date standards: 22.5.1989
The number of pages: 38
Approximate weight : 114 g (0.25 lbs)
Country: Spanish technical standard
Category: Technical standards UNE