专家解读视频
Defines the requirements to be observed when executing original technical drawings and other drawing office documents which are to be microcopied. The requirements will provide for high quality microforms which legible enlargement copies can be made. However, the application of these rules is also very beneficial for other methods of reproduction and it is therefore, recommended that all drawing office documents are executed in accordance with this standard, thereby being available for microcopying at a future date.
NEN EN ISO 6428:1999 - Identical
SS EN ISO 6428 Ed. 1 (1999) - Identical
ISO 6428:1982 - Identical
UNE EN ISO 6428:2000 - Identical
NS EN ISO 6428 Ed. 1 (1999) - Identical
I.S. EN ISO 6428:1999 - Identical
UNI EN ISO 6428:2001 - Identical
NF EN ISO 6428:2003 - Identical
ONORM EN ISO 6428:1999 - Identical
BS EN ISO 6428:1999 - Identical
