STN EN ISO 489
| Name: | STN EN ISO 489 |
| Validity: | Valid |
| Number of pages: | 24 |
| Language: |
EN
|
| Paper: | 14,10€ |
| Electronic version |
a) Only read (without ability to print and copy)
12,69€ b) Without ability to print, with ability to copy (printscreen) 14,10€ c) With ability to print and copy (printscreen) 18,33€ |
| Slovak title | Plasty. Stanovenie indexu lomu (ISO 489: 2022) |
| English title | Plastics - Determination of refractive index (ISO 489:2022) |
| Release Date: | 01. 07. 2022 |
| Date of withdrawal: | |
| ICS: | 83.080.01 |
| Sorting character/National clasification code | 64 0281 |
| Level of incorporation: | idt ISO 489:2022, idt EN ISO 489:2022 |
| Official Journal | 06/22 |
| Amendments | |
| Replaced by: | |
| Repleces: | STN EN ISO 489:2001-09 (64 0281) |
| Note in Official Journal: | |
| Subject of the standard: | 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. |
| Preview: | Náhľad normy (PDF) |