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.
Cross References:ISO 293
All current amendments available at time of purchase are included with the purchase of this document. | File Size : | 1
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, 450 KB |
| ISBN(s) : | 9780580928673 |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 12 |
| Product Code(s) : | 30335384, 30335384, 30335384 |
| Published : | 06/18/2019 |
| Same As : | BS EN ISO 305:2019 |
