NS 5531-1980
Labour environment - Classification and marking of covered welding electrodes according to required nominal hygienic air volume (NHL)

Standard No.

NS 5531-1980

Release Date

1980

Published By

NO-SN

Latest

NS 5531-1980

NS 5531-1980 history

• 1980 NS 5531-1980 Labour environment - Classification and marking of covered welding electrodes according to required nominal hygienic air volume (NHL)