All has its sources of origin and informations.
Product Ex certification: ISO 17065
Ex personnel competency: ISO 17024
Ex design, Ex installation, Ex inspection, Ex maintenance and repair: ISO 17020
If we say, we do Ex – we shall mean we follow those ISO standards as well. Validation of Ex shall always refer to.
Keep up the good work!
Arpad
It is mandatory. It shall be with the product. It shall be
Flying sparks and incorrect welding practices can cause premature failure of explosion
Fact: it does have accus. Not ok to use them in any
In any possible hazardous environment you may find Ex certified devices, installations
arpadveress 
