STN EN ISO 305
| Name: | STN EN ISO 305 |
| Validity: | Valid |
| Number of pages: | 16 |
| 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 tepelnej stability polyvinylchloridu, príbuzných homopolymérov a kopolymérov obsahujúcich chlór a ich zmesí. Metóda zmeny farby (ISO 305: 2019) |
| English title | Plastics - Determination of thermal stability of poly(vinyl chloride), related chlorine-containing homopolymers and copolymers and their compounds - Discoloration method (ISO 305:2019) |
| Release Date: | 01. 01. 2020 |
| Date of withdrawal: | |
| ICS: | 83.080.20 |
| Sorting character/National clasification code | 64 3204 |
| Level of incorporation: | idt ISO 305:2019, idt EN ISO 305:2019 |
| Official Journal | 12/19 |
| Amendments | |
| Replaced by: | |
| Repleces: | STN EN ISO 305:2001-07 (64 3204) |
| Note in Official Journal: | |
| Subject of the standard: | 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. |
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