
Explosive atmospheres—Part 4:Equipment protection by intrinsic safety "i"
NORMA vydána dne 9.8.2010
    
        Designation standards: GB 3836.4-2010
                
                
                
                Note:    NEPLATNÁ
               
                Publication date standards:  9.8.2010
                Country:          Chinese technical standard
        Kategorie:  Technické normy GB