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ILNAS-EN ISO 4577:2019
Edition
09/2019
Plastics - Polypropylene and propylene-copolymers - Determination of thermal oxidative stability in air - Oven method (ISO 4577:2019)
Plastics - Polypropylene and propylene-copolymers - Determination of thermal oxidative stability in air - Oven method (ISO 4577:2019)
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Abstract
This document specifies a method for the determination of the resistance of moulded test specimens of polypropylene and propylene-copolymers to accelerated ageing by heat in the presence of air using a forced draught oven.
The method represents an attempt to estimate the service life of parts fabricated from propylene plastics.
The stability determined by this method is not directly related to the suitability of the material for use when different environmental conditions prevail.
NOTE The specified thermal levels are considered sufficiently severe to cause failure of commercial grades of heat-stable propylene plastics within a reasonable period of time. If desired, lower temperatures can be applied to estimate the performance of propylene plastics with lower heat stabilities.
Status
| Standard - Active |
Origin
| Technical Committee : |
| CEN/TC 249 : Plastics |
Implementation
| start of the vote on the project | 04/04/2019 | date of ratification (dor) | 25/07/2019 | |||
| end of the vote on the project | 24/06/2019 | date of anouncement (doa) | 31/12/2019 | |||
| start of the vote on the final project | 01/06/2020 | date of publication (dop) | 31/03/2020 | |||
| end of the vote on the final project | 27/07/2020 | date of withdrawal (dow) | 31/03/2020 |
|
Publication Official Journal
of the Grand-Duchy of Luxembourg |
22/10/2019 |
| Reference | Mémorial A N° 709 |
Relations
| Relations to older standards |
| ILNAS-EN ISO 4577:1999 |
| Relations to international standards |
| ISO 4577 |
| ISO 4577:2019 |
International Classification for Standards (ICS codes) :
| 83.080.20 : Thermoplastic materials |
