I.S. EN ISO 7944:1999
Current
The latest, up-to-date edition.
OPTICS AND OPTICAL INSTRUMENTS - REFERENCE WAVELENGTHS
Hardcopy , PDF
English
01-01-1999
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
Important note : Users cannot be edited or removed once added to your Multi user PDF.
Foreword
1 Scope
2 Reference wavelengths, principal dispersions and Abbe
numbers
Defines two reference wavelengths to be used for the characterization of optical materials, optical systems and instruments, as well as ophthalmic lenses.
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| UNE-EN ISO 7944:1999 | Identical |
| BS EN ISO 7944:1998 | Identical |
| DIN EN ISO 7944:1998-07 | Identical |
| ISO 7944:1998 | Identical |
| EN ISO 7944:1998 | Identical |
| UNI EN ISO 7944 : 1999 | Identical |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.