EN ISO 489:2022
(Main)Plastics - Determination of refractive index (ISO 489:2022)
Plastics - Determination of refractive index (ISO 489:2022)
This document specifies two test methods for determining the refractive index of plastics, namely:
— Method A: a refractometric method for measuring the refractive index of moulded parts, cast or extruded sheet or film, by means of a refractometer. It is applicable not only to isotropic transparent, translucent, coloured or opaque materials but also to anisotropic materials.
— Method B: an immersion method (making use of the Becke line phenomenon) for determining the refractive index of powdered or granulated transparent materials by means of a microscope. Monochromatic light, in general, is used to avoid dispersion effects.
NOTE The refractive index is a fundamental property which can be used for checking purity and composition, for the identification of materials and for the design of optical parts. The change in refractive index with temperature can give an indication of transition points of materials.
Kunststoffe - Bestimmung des Brechungsindex (ISO 489:2022)
Dieses Dokument legt zwei Verfahren zur Bestimmung des Brechungsindex von Kunststoffen fest:
— Verfahren A: Refraktometerverfahren zur Messung des Brechungsindex von Formteilen, gegossenen oder stranggepressten Tafeln oder Folien mit einem Refraktometer. Dieses Verfahren gilt nicht nur für isotrope durchsichtige, durchscheinende, gefärbte oder undurchsichtige, sondern auch für anisotrope Werkstoffe.
— Verfahren B: Immersionsverfahren (unter Ausnutzung des Becke-Linien-Phänomens) zur Bestimmung des Brechungsindex von pulverförmigen oder granulierten durchsichtigen Werkstoffen unter Anwendung eines Mikroskops. Im Allgemeinen wird monochromatisches Licht verwendet, um Dispersionseffekte zu vermeiden.
ANMERKUNG Der Brechungsindex ist eine grundlegende Eigenschaft, die zur Überprüfung der Reinheit und der Zusammensetzung, zur Identifizierung von Werkstoffen und zur Bemessung optischer Teile verwendet werden kann. Aus der Änderung des Brechungsindex mit der Temperatur kann der Übergangspunkt der Werkstoffe ermittelt werden.
Plastiques - Détermination de l’indice de réfraction (ISO 489:2022)
Le présent document spécifie deux méthodes d'essai visant à déterminer l'indice de réfraction des plastiques, à savoir:
— Méthode A: méthode réfractométrique destinée à mesurer l'indice de réfraction des pièces moulées, se présentant sous forme de feuilles ou de films coulés ou extrudés, au moyen d'un réfractomètre. Elle s'applique non seulement aux matériaux isotropes opaques, colorés, translucides ou transparents, mais aussi aux matériaux anisotropes.
— Méthode B: méthode d'immersion (utilisation du phénomène de la ligne de Becke) destinée à déterminer l'indice de réfraction de matériaux transparents en poudre ou en granulés à l'aide d'un microscope. La lumière monochromatique est utilisée pour éviter les effets de dispersion.
NOTE L'indice de réfraction est une propriété fondamentale qui peut être utilisée pour contrôler la pureté et la composition des matières, pour leur identification et pour la conception de pièces d'optique. La variation de l'indice de réfraction suivant la température peut donner une idée du point de transition des matières.
Polimerni materiali - Določanje lomnega količnika (ISO 489:2022)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 489:2022
01-maj-2022
Nadomešča:
SIST EN ISO 489:2000
Polimerni materiali - Določanje lomnega količnika (ISO 489:2022)
Plastics - Determination of refractive index (ISO 489:2022)
Kunststoffe - Bestimmung des Brechungsindex (ISO 489:2022)
Plastiques - Détermination de l’indice de réfraction (ISO 489:2022)
Ta slovenski standard je istoveten z: EN ISO 489:2022
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
SIST EN ISO 489:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 489:2022
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SIST EN ISO 489:2022
EN ISO 489
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2022
EUROPÄISCHE NORM
ICS 83.080.01 Supersedes EN ISO 489:1999
English Version
Plastics - Determination of refractive index (ISO 489:2022)
Plastiques - Détermination de l'indice de réfraction Kunststoffe - Bestimmung des Brechungsindex (ISO
(ISO 489:2022) 489:2022)
This European Standard was approved by CEN on 8 February 2022.
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. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC 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
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 489:2022 E
worldwide for CEN national Members.
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SIST EN ISO 489:2022
EN ISO 489:2022 (E)
Contents Page
European foreword . 3
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SIST EN ISO 489:2022
EN ISO 489:2022 (E)
European foreword
This document (EN ISO 489:2022) has been prepared by Technical Committee ISO/TC 61 "Plastics" in
collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by NBN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2022, and conflicting national standards
shall be withdrawn at the latest by September 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 489:1999.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 489:2022 has been approved by CEN as EN ISO 489:2022 without any modification.
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SIST EN ISO 489:2022
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SIST EN ISO 489:2022
INTERNATIONAL ISO
STANDARD 489
Third edition
2022-03
Plastics — Determination of refractive
index
Plastiques — Détermination de l'indice de réfraction
Reference number
ISO 489:2022(E)
© ISO 2022
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SIST EN ISO 489:2022
ISO 489:2022(E)
COPYRIGHT PROTECTED DOCUMENT
©
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