STN EN 646
| Označenie: | STN EN 646 |
| Platnosť: | Zrušená |
| Počet strán: | 10 |
| Jazyk: |
EN
|
| Listinná verzia: | 9,70€ |
| Elektronická verzia: |
a) Bez možnosti tlače, prenosu textu a obrázkov:
8,73€ b) Bez možnosti tlače, s prenosom textu a obrázkov: 9,70€ c) S možnosťou tlače, prenosu textu a obrázkov: 12,61€ |
| Slovenský názov: | Papier a lepenka určené na styk s požívatinami. Stanovenie stálofarebnosti farbeného papiera a lepenky |
| Anglický názov: | Paper and board intended to come into contact with foodstuffs - Determination of colour fastness of dyed paper and board |
| Dátum vydania: | 01. 05. 2019 |
| Dátum zrušenia: | 01. 12. 2019 |
| ICS: | 67.250, 85.060 |
| Triediaci znak: | 50 7004 |
| Úroveň zapracovania: | idt EN 646:2018 |
| Vestník: | 04/19 |
| Zmeny: | |
| Nahradzujúce normy: | STN EN 646:2019-12 (50 7004) |
| Nahradené normy: | STN EN 646:2006-10 (50 7004) |
| Poznámka vo Vestníku: | |
| Predmet normy: | This document describes procedures for the testing of dyed paper and board intended to come into contact with foodstuffs. Some procedures depending on the foreseeable use of the material are given. Visual evaluation against a grey scale provides grading of the bleeding. For samples having significant different sides, a migration can occur from one glass fibre to the other and could lead to wrong interpretation of the fastness of one side. It is advisable to check these samples using large sampling procedure to prevent cross contamination of the glass fibre during the migration procedure. The procedure is described in Annex A. If lower limit of detection is required, this procedure could also be used. |