STN EN ISO 305
| Označenie: | STN EN ISO 305 |
| Platnosť: | Platná |
| Počet strán: | 16 |
| Jazyk: |
EN
|
| Listinná verzia: | 14,10€ |
| Elektronická verzia: |
a) Bez možnosti tlače, prenosu textu a obrázkov:
12,69€ b) Bez možnosti tlače, s prenosom textu a obrázkov: 14,10€ c) S možnosťou tlače, prenosu textu a obrázkov: 18,33€ |
| Slovenský názov: | Plasty. Stanovenie tepelnej stability polyvinylchloridu, príbuzných homopolymérov a kopolymérov obsahujúcich chlór a ich zmesí. Metóda zmeny farby (ISO 305: 2019) |
| Anglický názov: | Plastics - Determination of thermal stability of poly(vinyl chloride), related chlorine-containing homopolymers and copolymers and their compounds - Discoloration method (ISO 305:2019) |
| Dátum vydania: | 01. 01. 2020 |
| Dátum zrušenia: | |
| ICS: | 83.080.20 |
| Triediaci znak: | 64 3204 |
| Úroveň zapracovania: | idt ISO 305:2019, idt EN ISO 305:2019 |
| Vestník: | 12/19 |
| Zmeny: | |
| Nahradzujúce normy: | |
| Nahradené normy: | STN EN ISO 305:2001-07 (64 3204) |
| Poznámka vo Vestníku: | |
| Predmet normy: | This document specifies two methods for the determination of the thermal stability of products and compounds based on vinyl chloride homopolymers and copolymers (referred to simply as PVC in the following text) by the extent of the discoloration that occurs when they are exposed, in the form of sheet, to elevated temperatures. The two methods are: — Method A: Oil-bath method; — Method B: Oven method. These methods are particularly applicable to the determination of the resistance of PVC to degradation by heat, as assessed by the change in colour after different times of heating under standardized conditions. The results are comparative only, and can be unsatisfactory when coloured PVC materials are tested. The stability times given by the two methods might not be similar and cannot be used for direct-comparison purposes. |
| Náhľad normy: | Náhľad normy (PDF) |