I.S. EN ISO 7944:1999现行
Optics And Optical Instruments - Reference Wavelengths
出版：National Standards Authority of Ireland
专家解读视频
Defines two reference wavelengths to be used for the characterization of optical materials, optical systems and instruments, as well as ophthalmic lenses.
SS EN ISO 7944 Ed. 1 (1998) - Identical
ISO 7944:1998 - Identical
UNE EN ISO 7944:1999 - Identical
NS EN ISO 7944 Ed. 1 (1998) - Identical
UNI EN ISO 7944:1999 - Identical
NBN EN ISO 7944:1998 - Identical
NF EN ISO 7944:1998 - Identical
ONORM EN ISO 7944:1998 - Identical
DIN EN ISO 7944 (1998-07) - Identical
BS EN ISO 7944:1998 - Identical
NEN EN ISO 7944:1998 - Identical
SN EN ISO 7944:1998 - Identical
