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BS EN ISO 9337-1:2001

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Contact lenses. Determination of back vertex power Method using focimeter with manual focusing

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-08-2001

Superseded date

29-09-2006

£166.00
Excluding VAT
Summarise this standard

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.

Committee
CH/172
DevelopmentNote
Renumbers and supersedes BS ISO 9337-1 Supersedes 91/51534 DC 2001 version incorporates amendment 13236 to BS ISO 9337-1 (09/2005)
DocumentType
Standard
Pages
16
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

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A newer version of this standard is available.

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£166.00
Excluding VAT