Standard Swedish standard · SS-EN ISO 489:2022

Plastics - Determination of refractive index (ISO 489:2022)

Status: Valid

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Standard Swedish standard · SS-EN ISO 489:2022

Plastics - Determination of refractive index (ISO 489:2022)
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Scope
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.

Subjects

General (83.080.01) Thermosetting materials (83.080.10)


Buy this standard

Standard Swedish standard · SS-EN ISO 489:2022

Plastics - Determination of refractive index (ISO 489:2022)
Subscribe on standards - Read more Dölj
Price: 875 SEK
standard ikon pdf

PDF

Price: 875 SEK
standard ikon

Paper

Price: 1 400 SEK
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Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-80034591

Edition: 2

Approved: 4/8/2022

No of pages: 24

Replaces: SS-EN ISO 489