International
Electrotechnical
Commission
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Area
Equipment for explosive atmospheres
/ Encapsulation "m"
IEV ref
426-12-06
en
free surface
compound surface exposed to the explosive atmosphere and/or dust layers
fr
surface libre
, f
surface du composé exposée à l'atmosphère explosive et/ou aux couches de poussières
ar
سطح مكشوف
de
freie Oberfläche, <explosionsfähige Atmosphären> f
es
superficie libre, f
it
superficie libera
ja
露出面
no
nb
fri overflate
no
nn
fri overflate
pl
wolna powierzchnia, f
pt
superfície livre
ru
открытая поверхность
zh
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Publication date:
2020-03
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