
Photoflash devices. Method for determining the guide number
NORMA vydaná dňa 1.1.1980
    
        Designation standards: GOST 23287-78
                
                
                
               
                Publication date standards:  1.1.1980
        The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
        Country:          Russian technical standard
        Kategória: Technické normy GOST
        
                
              
Implemented changes and corrections:
Amd. 4.85