STN EN 13523-3
| Name: | STN EN 13523-3 |
| Validity: | Valid |
| Number of pages: | 12 |
| Language: |
EN
|
| Paper: | 9,70€ |
| Electronic version |
a) Only read (without ability to print and copy)
8,73€ b) Without ability to print, with ability to copy (printscreen) 9,70€ c) With ability to print and copy (printscreen) 12,61€ |
| Slovak title | Kontinuálne lakované kovy. Skúšobné metódy. Časť 3: Rozdiel farebných odtieňov a metaméria. Kolorimetrické porovnanie |
| English title | Coil coated metals - Test methods - Part 3: Colour difference and metamerism - Instrumental comparison |
| Release Date: | 01. 01. 2022 |
| Date of withdrawal: | 01. 08. 2024 |
| ICS: | 25.220.60 |
| Sorting character/National clasification code | 03 8761 |
| Level of incorporation: | idt EN 13523-3:2021 |
| Official Journal | 12/21 |
| Amendments | |
| Replaced by: | STN EN 13523-3:2024-08 (03 8761) |
| Repleces: | STN EN 13523-3:2014-11 (03 8761), STN EN 13523-15:2015-12 (03 8761) |
| Note in Official Journal: | |
| Subject of the standard: | This document specifies procedures for determining the instrumental colour difference (CIELAB) of an organic coating on a metallic substrate compared to another one used as a reference (usually called reference) and the metamerism depending on the illuminant. When two colour specimens have identical spectral reflectance curves, they are matching under any illuminant irrespective of its spectral characteristics. This is termed a “spectral match”. It is also possible for two colour specimens having different spectral reflectance curves to match visually under a given light source but not to match under another light source with different spectral characteristics; such matches are termed “metameric”. One quantitative description of metamerism is the so-called “metamerism index”. Information on the metamerism index is of limited value where ΔE (instrumental colour difference for a given illuminant) is > 0,5. |
| Preview: | Náhľad normy (PDF) |