• There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert

BS EN ISO 8597:1996

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Visual acuity test types. Method for correlating optotypes used for non-clinical purposes

Available format(s)

Hardcopy , PDF

Withdrawn date

01-03-2007

Language(s)

English

Published date

15-07-1996

Committees responsible
National foreword
Foreword
Method
1 Scope
2 Normative references
3 General requirements for optotypes
4 Correlation of optotypes
5 Assignment of an acuity score
6 Assessing the equivalence of two kinds of optotypes
7 Significance of the difference between the two averages
Annex
A (normative) Normative references to international
    publications with their corresponding European publications

Gives a method of correlation between a given set of optotypes and the standard optotype (Landolt ring) specified by ISO 8596.

Committee
CH/172
DevelopmentNote
Also numbered as BS 4274-3(1996). Supersedes 86/55504 DC. (06/2005)
DocumentType
Standard
Pages
12
PublisherName
British Standards Institution
Status
Withdrawn

BS 4274-2(1996) : 1996 VISUAL ACUITY TEST TYPES - SPECIFICATION FOR LANDOLT RING OPTOTYPE FOR NON-CLINICAL PURPOSES

BS EN ISO 8596:2009 Ophthalmic optics. Visual acuity testing. Standard optotype and its presentation

View more information
£120.00
Excluding VAT

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.