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The organisation and issuers of standards
 Tab. 1: The diversity of standards

 

 

 

Standard

 

 

Information

DIN
standard

Issuer: Deutsches Institut für Normung (German Institute for Standardisation)

= national, German standard

DIN standards are issued for electric components and organisational methods as well as fasteners. DIN standards remain common in Germany even though the changeover to ISO standards is gaining pace. DIN standards will remain in place for parts which do not have ISO/EN standards or for which there is no need for standardisation.

ISO
standard

Issuer: ISO (International Organization for Standardization).

= international standard

The term "ISO" comes from the Greek for "equal". ISO standards apply around the world and are therefore suited for world trade. Even though ISO standardisation is gaining in importance, the German DIN standard was a world leader in standardisation for a long time.

EN
st
andard

Issuer: European Committee for Standardization (CEN)

= europäische Norm (European standard)

The idea behind the EN standard was to establish "equal" preconditions for trade within Europe. Unlike ISO standards, EN standards only apply within the European Union. The CEN endeavours to make EN and ISO standards the same. In principle existing ISO standards should be adopted unchanged as EN standards, retaining the same ISO standard number but starting with EN ISO. If this is not possible at European standardisation level, separate EN standards are produced with EN standard numbers different from the ISO numbers.

DIN EN

standard

= national German version of an EN standard adopted in unchanged form This is a combination of standards which indicates that the standard number (e.g. 12345) identifies the same object both in the DIN standard and the EN standard.

DIN EN ISO

standard

= national German version of an EN standard adopted in unchanged form This is a combination of standards which indicates that the standard number (e.g. 12345) identifies the same object in the DIN standard, EN standard and ISO standard.

DIN ISO EN

= national German version of an ISO standard adopted in unchanged form.