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DIN
DIN EN ISO 489 E : 1999

DIN EN ISO 489 E : 1999

Current

Current

The latest, up-to-date edition.

PLASTICS - DETERMINATION OF REFRACTIVE INDEX

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-1999

Publisher

German Institute for Standardisation (Deutsches Institut für Normung)

Gives two test procedures which determine refractive index of plastics. Procedure A (refractometric) measures refractive index of moulded parts, cast or extruded film or sheet by using a refractometer. Covers isotropic transparent, coloured, opaque and translucent materials, as well as anisotropic materials. The procedure is reommended when great accuracy is needed. Does not cover powdered or granulated materials. Procedure B (immersion) determines the refractive index of granulated or powdered trans- parent materials using a microscope (making use of the Becke line phenomenon. Generally, monochromatic light should be used to avoid dispersion effects. Accuracy is the same as that of procedure A. It covers isotropic translucent, coloured material, but not materials which are anisotropic or opaque.

DocumentType
Standard
Pages
16
PublisherName
German Institute for Standardisation (Deutsches Institut für Normung)
Status
Current
SupersededBy

Standards Relationship
EN ISO 489:1999 Identical
ISO 489:1999 Identical

DIN EN ISO 11963:2013-03 PLASTICS - POLYCARBONATE SHEETS - TYPES, DIMENSIONS AND CHARACTERISTICS (ISO 11963:2012)

ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 5725-3:1994 Accuracy (trueness and precision) of measurement methods and results — Part 3: Intermediate measures of the precision of a standard measurement method
ISO 291:2008 Plastics Standard atmospheres for conditioning and testing
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method

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Hardcopy - English
PDF - English
Hardcopy - English
PDF - English
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