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NEN EN ISO 9337-1 : 2000

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

CONTACT LENSES - DETERMINATION OF BACK VERTEX POWER - PART 1: METHOD USING FOCIMETER WITH MANUAL FOCUSING

Superseded date

01-09-2006

Published date

12-01-2013

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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Determination of back vertex power
   4.1 Principle
   4.2 Apparatus and reagent
   4.3 Conditioning of lenses prior to testing
   4.4 Procedure
         4.4.1 Calibration
         4.4.2 Measurement of back vertex power of
                 rigid contact lenses
         4.4.3 Measurement of back vertex power of
                 hydrogel contact lenses
5 Expression of results
6 Precision data
7 Test report
Annex A (informative) Precision data
Bibliography

Gives test procedures for determining the back vertex power of both rigid and hydrogel contact lenses in air using a focimeter with manual focusing. Applies to finished contact lenses.

DocumentType
Standard
PublisherName
Netherlands Standards
Status
Superseded

Standards Relationship
UNE-EN ISO 9337-1:2001 Identical
EN ISO 9337-1 : 2000 Identical
I.S. EN ISO 9337-1:2000 Identical
BS EN ISO 9337-1:2001 Identical
ISO 9337-1:1999 Identical
DIN EN ISO 9337-1:2000-09 Identical

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