prEN 167

SLOVENSKI STANDARD
oSIST prEN 167:2007
01-december-2007
2VHEQRYDURYDQMHRþL0HWRGHRSWLþQLKSUHVNXVRY
Personal eye-protection - Optical test methods
Persönlicher Augenschutz - Optische Prüfverfahren
Protection individuelle de l'oeil - Méthodes d'essai optiques
Ta slovenski standard je istoveten z: prEN 167
ICS:
13.340.20 Varovalna oprema za glavo Head protective equipment
oSIST prEN 167:2007 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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EUROPEAN STANDARD
DRAFT
prEN 167
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2007
ICS 13.340.20 Will supersede EN 167:2001
English Version
Personal eye-protection - Optical test methods
Persönlicher Augenschutz - Optische Prüfverfahren
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 85.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the
same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 167:2007: E
worldwide for CEN national Members.

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prEN 167:2007 (E)
Contents
page
Foreword.3
1 Scope .4
2 Normative references .4
3 Test for spherical, astigmatic and prismatic refractive powers .4
3.1 Testing unmounted oculars covering one eye .4
3.2 Testing unmounted oculars covering both eyes and mounted oculars (spectacles, goggles
and face-shields).6
4 Light diffusion test.8
4.1 Principle.8
4.2 Test methods.8
5 Assessment of quality of material and surface.14
6 Determination of transmittance.14
7 Determination of variations in luminous transmittance .15
7.1 Unmounted oculars covering one eye .15
7.2 Mounted oculars and unmounted oculars covering both eyes .16
7.3 Method to correct transmittance for variations in thickness of the ocular .17
8 Determination of spectral reflectance in infrared.
...