NA 032

DIN Standards Committee Gas Technology

DIN EN 331 [Withdrawn] references following documents:

Document number Edition Title
EN 377 1993-05 Lubricants for applications in appliances and associated controls using combustible gases except those designed for use in industrial processes More 
ISO 228-2 1987-08 Pipe threads where pressure-tight joints are not made on the threads; Part 2 : Verification by means of limit gauges More 
ISO 261 1998-12 ISO general purpose metric screw threads - General plan More 
ISO 7005-2 1988-12 Metallic flanges; part 2: cast iron flanges More 
ISO 7005-3 1988-02 Metallic flanges; part 3: copper alloy and composite flanges More