Defines the composition, property requirements and tolerances on dimensions and form for copper and copper alloy die and hand forgings. Also defines the sampling methods, test procedures for verifying conformity to the requirements of this standard, and delivery conditions.

Supersedes NEN ISO 1640. (07/2003)

NEN ISO 1640:1988

NEN EN 12420:2014

BS EN 12420:1999 - Identical

NF EN 12420:1999 - Identical

NBN EN 12420:1999 - Identical

UNI EN 12420:2000 - Identical

I.S. EN 12420:1999 - Identical

NS EN 12420 Ed. 1 (1999) - Identical

UNE EN 12420:2000 - Identical

SS EN 12420 Ed. 1 (1999) - Identical

DIN EN 12420 (1999-03) - Identical

SN EN 12420:1999 - Identical

ONORM EN 12420:1999 - Identical