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NEN
NEN EN ISO 489 : 1999

NEN EN ISO 489 : 1999

Current

Current

The latest, up-to-date edition.

PLASTICS - DETERMINATION OF REFRACTIVE INDEX

Published date

01-12-2013

Publisher

Netherlands Standards

1 Scope
2 Normative references
3 Apparatus and materials
      3.1 Method A
      3.2 Method B
4 Preparation of test specimens
      4.1 Method A
      4.2 Method B
      4.3 Required number of specimens or measurements
5 Conditioning
6 Procedure
      6.1 Method A
      6.2 Method B
7 Precision
8 Test report

Defines 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. - 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.

DevelopmentNote
Supersedes NEN ISO 489. (09/2003)
DocumentType
Standard
PublisherName
Netherlands Standards
Status
Current
Supersedes

Standards Relationship
ISO 489:1999 Identical
UNE-EN ISO 489:2000 Identical
I.S. EN ISO 489:1999 Identical
NF EN ISO 489 : 1999 Identical
BS EN ISO 489:1999 Identical
UNI EN ISO 489 : 2001 Identical
EN ISO 489:1999 Identical

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