International
Electrotechnical
Commission
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Area
Equipment for explosive atmospheres
/ Areas and zones
IEV ref
426-03-11
en
primary grade of release
release which can be expected to occur periodically or occasionally during normal operation
fr
degré "dégagement primaire"
, m
dégagement périodique ou occasionnel, prévisible en fonctionnement normal
ar
درجة تنفيس إبتدائى
de
primärer Freisetzungsgrad, m
es
grado de escape primario, m
it
emissione di primo grado
ja
第一放出等級
no
nb
primært utslipp
no
nn
primært utslepp
pl
pierwszy stopień uwalniania, m
pt
grau de libertação primária
ru
утечка первой степени
zh
1级释放
Publication date:
2020-03
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