NBN EN ISO 18369-3 : 2006
Current
The latest, up-to-date edition.
OPHTHALMIC OPTICS - CONTACT LENSES - PART 3: MEASUREMENT METHODS
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Methods of measurement for contact lenses
4.1 Radius of curvature
4.2 Back vertex power
4.3 Diameters and widths
4.4 Thickness
4.5 Inspection of edges, inclusions and surface imperfections
4.6 Determination of spectral and luminous transmittance
4.7 Saline solution for contact lens testing
5 Test report
Annex A (informative) Measurement of rigid contact lens
curvature using interferometry
Annex B (informative) Determination of back vertex power
of soft contact lenses immersed in saline using
the Moire deflectometer or Hartmann methods
Bibliography
Describes the methods for measuring the physical and optical properties of contact lenses specified in ISO 18369-2, i.e. radius of curvature, back vertex power, diameter, thickness, inspection of edges, inclusions and surface imperfections, and determination of spectral and luminous transmittances.
DevelopmentNote |
Supersedes NBN EN ISO 8321-1 and NBN EN ISO 8321-2. (03/2008) Supersedes NBN EN ISO 8599, NBN EN ISO 9337-2, NBN EN ISO 9338, NBN EN ISO 9339-1, NBN EN ISO 9339-2, NBN EN ISO 10338, NBN EN ISO 9341, NBN EN ISO 10344 and NBN EN ISO 9337-1. (11/2009)
|
DocumentType |
Standard
|
PublisherName |
Belgian Standards
|
Status |
Current
|
Standards | Relationship |
UNE-EN ISO 18369-3:2007 | Identical |
DIN EN ISO 18369-3:2016-06 (Draft) | Identical |
BS EN ISO 18369-3:2017 | Identical |
I.S. EN ISO 18369-3:2017 | Identical |
UNI EN ISO 18369-3 : 2007 | Identical |
ISO 18369-3:2017 | Identical |
ONORM EN ISO 18369-3 : 2018 | Identical |
NEN EN ISO 18369-3 : 2017 + COR 2018 | Identical |
NS EN ISO 18369-3 : 2017 | Identical |
EN ISO 18369-3:2017 | Identical |
DIN EN ISO 18369-3:2006-11 | Identical |
NF EN ISO 18369-3 : 2017 | Identical |
SN EN ISO 18369-3:2018 | 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.