EN 167:2001
(Main)Personal eye-protection - Optical test methods
Personal eye-protection - Optical test methods
This European standard specifies optical test methods for eye-protectors, the requirements for which are contained in other EN's. Alternative methods may be used if shown to be equivalent. Non-optical test methods are given in EN 168. A definition of terms is given in EN 165.
Persönlicher Augenschutz - Optische Prüfverfahren
Diese Europäische Norm legt optische Prüfverfahren für Augenschutzgeräte fest, für die die Anforderungen in anderen Europäischen Normen enthalten sind.
Alternative Prüfverfahren dürfen verwendet werden, falls deren Gleichwertigkeit nachgewiesen wurde.
EN 168 enthält die nichtoptischen Prüfverfahren.
Anforderungen sind in EN 166 enthalten.
Die Begriffe sind in EN 165 definiert.
Protection individuelle de l'oeil - Méthodes d'essais optiques
La présente Norme européenne spécifie les méthodes d'essais optiques pour les protecteurs oculaires dont les spécifications sont données dans d'autres EN.
Il est possible d'utiliser d'autres méthodes s'il est démontré qu'elles sont équivalentes.
Les méthodes d'essais autres qu'optiques font l'objet de l'EN 168.
Les spécifications sont données dans l'EN 166.
Une définition des termes employés est donnée dans l'EN 165.
Osebno varovanje oči - Metode optičnih preskusov
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Personal eye-protection - Optical test methodsProtection individuelle de l'oeil - Méthodes d'essais optiquesPersönlicher Augenschutz - Optische Prüfverfahren13.340.20Varovalna oprema za glavoHead protective equipmentICS:SIST EN 167:2002enTa slovenski standard je istoveten z:EN 167:200101-junij-2002SIST EN 167:2002SLOVENSKI
STANDARDSIST EN 167:19961DGRPHãþD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 167November 2001ICS 13.340.20Supersedes EN 167:1995English versionPersonal eye-protection - Optical test methodsProtection individuelle de l'oeil - Méthodes d'essaisoptiquesPersönlicher Augenschutz - Optische PrüfverfahrenThis European Standard was approved by CEN on 3 September 2001.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 167:2001 E
Method for measuring spherical and astigmatic refractive powers over smallareas.19A.1Principle.19A.2Apparatus.19A.3Measurements.20Annex B (informative)
Uncertainty of measurement and results interpretation.25B.1Test report and uncertainty of measurement.25Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives.27
in the as-worn position so that the axis of the eye-protector is parallel to the optical axis of the test assembly. Adjustable tilteye-protectors are positioned with their oculars normal to the optical axis of the test equipment.Measure the vertical and horizontal distances between the two displaced images arising from the two ocularregions of the eye-protector.These distances in centimetres are divided by two to give the horizontal and vertical prismatic differencesin centimetres per metre.If the light paths which correspond to the two eye regions cross, the prismatic refractive power is `base in' and if thelight paths do not cross, it is `base out'.
70) nm, etc.JInterference filter with peak transmittance in the green part of the spectrum (required only if a filament lamp is used as the light source)L1Achromatic lens, focal length between 20 mm and 50 mmLB1Diaphragm, diameter of aperture 1 mm nominalPEye-protectorLB2Diaphragm as shown in detail AL2Achromatic lens, 1 000 mm nominal focal length and 75 mm nominal diameterBImage planeaAs close as possible.bX = (32,0
0,2) mm or (27,0
0,2) mm depending on the size of the head-form specified in EN 168.Figure 2 — Arrangement of apparatus for measurement of prismatic difference
and .Key1Incident light on optical axis2Diffused light3OcularFigure 3 — Diffusion angles4.2 Test methodsTwo test methods are specified which use the same measurement principle. The `basic method' detailed in 4.2.1may be used for oculars without corrective effect and for all shade numbers. The `simplified method' detailedin 4.2.2 has to be used for oculars with corrective effect.The results obtained with the two methods may be considered to be equivalent; whichever method is used therelative measurement uncertainty for the reduced luminance factor shall not be greater than 25 %.Measurements of light diffusion shall be taken at the visual centre of the ocular. If the visual centre is not knownthen the geometric centre shall be used.NOTEVisual centre is as defined in EN 166.
= 1,5 and
+
= 2 in relationto the optical axis.4.2.1.2 ProcedureThe ocular is placed in the parallel beam at position P, then diaphragm BL is put in place. The flux 1L falling ontothe photodetector corresponds to the undiffused light transmitted by the sample. Diaphragm BL is then replaced byannular diaphragm BR; flux 1R falling onto the photodetector corresponds to the total diffused light originating fromthe filter and from the apparatus. The test sample is then placed at position P. The flux 2R which then falls ontothe photodetector corresponds to the diffused light coming from the apparatus only.The difference 1R - 2R corresponds to the light diffused by the filter. The mean reduced luminance factor l* forthe solid angle
is calculated from the preceding fluxes by means of the formula:1L2R1R*llwhere1R, 2Rare the luminance fluxes with the annular diaphragm;1Lis the luminous flux with the circular diaphragm;is the solid angle defined by the annular diaphragm.
may be determined accurately; any deviation from the nominal diameters shall be taken into account bycalculation.
...
Frequently Asked Questions
EN 167:2001 is a standard published by the European Committee for Standardization (CEN). Its full title is "Personal eye-protection - Optical test methods". This standard covers: This European standard specifies optical test methods for eye-protectors, the requirements for which are contained in other EN's. Alternative methods may be used if shown to be equivalent. Non-optical test methods are given in EN 168. A definition of terms is given in EN 165.
This European standard specifies optical test methods for eye-protectors, the requirements for which are contained in other EN's. Alternative methods may be used if shown to be equivalent. Non-optical test methods are given in EN 168. A definition of terms is given in EN 165.
EN 167:2001 is classified under the following ICS (International Classification for Standards) categories: 13.340.20 - Head protective equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 167:2001 has the following relationships with other standards: It is inter standard links to EN 167:1995, EN ISO 18526-4:2020, EN ISO 18526-2:2020, EN ISO 18526-3:2020, EN ISO 16321-2:2021, EN ISO 18526-1:2020, prEN 167. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 167:2001 is associated with the following European legislation: EU Directives/Regulations: 2016/425, 89/686/EEC; Standardization Mandates: M/031. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 167:2001 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
이 기사는 유럽 표준인 EN 167:2001에 대해 다루고 있습니다. 이 표준은 안전 안경에 대한 광학적 시험 방법을 규정합니다. 이 표준은 안전 안경의 요구 사항을 명시하며, 동등한 것으로 입증된 경우 대체 방법을 사용할 수 있습니다. 비광학적 시험 방법은 EN 168에서 제시되며, 용어 정의는 EN 165에서 제공됩니다.
The article discusses the European standard EN 167:2001, which pertains to optical test methods for eye-protectors. This standard specifies the requirements for eye-protectors, while alternative methods can be used if proven to be equivalent. Non-optical test methods can be found in EN 168, and a definition of terms is provided in EN 165.
この記事は、欧州の標準であるEN 167:2001について取り上げています。この標準は、目の保護具に対する光学的なテスト方法を規定しています。他のEN規格に含まれる要件が指定されていますが、同等なものであることが証明されれば代替方法を使用することができます。非光学的なテスト方法はEN 168で示されており、用語の定義はEN 165で提供されています。
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...