|
| Название (рус.): | Пластмассы. Определение тенденции компаундов и продуктов на основе гомополимеров и сополимеров винилхлорида выделять хлорид водорода и другие кислотные продукты при повышенных температурах. Часть 1. Метод с применением конго красного |
| Название (англ.): | Plastics; determination of the tendency of compounds and products based on vinyl chloride homopolymers and copolymers to evolve hydrogen chloride and any other acidic products at elevated temperatures; part 1: Congo red method |
| Описание (англ.): | Intended primarily as a simple and rapid quality-control test during the manufacture and conversion of PVC compounds. Suitable for coloured compounds. Is not recommended for compounds in the form of dry blends. The determination is carried out on a sampleof the PVC compound which is maintained at an agreed temperature in still air until the colour of a Congo red paper held above it changes from red to blue. If universal indicator paper is used, the colour change is that corresponding to pH 3. The time required for the colour change is taken to be the stability time, t |
| Заменяет стандарты: | ISO/R 182(1970.06) |
| Дата регистрации: | 01.01.91 |
| Дата введения: | 15.12.90 |
| Код КГС: | Л29 |
| Код ОКСТУ: | 2209 |
| Код ОКС(МКС): | 83.080.20 |
| Код ОКП: | 2209 |
| Нормативные ссылки: | DIN 53381-1-1983, EQV*BS 2782 PART 1 METHOD 130A(1991/BSI), EQV*NF T51-785-1(1993/AFNOR), EQV*NF ISO 182-1(1993/AFNOR), EQV ISO 565-1990*ISO 3696-1987 |
| Ключевые слова: | HIGH-TEMPERATURE TESTING PH MEASUREMENT PLASTICS POLYVINYL CHLORIDE TESTING TESTS THERMAL STABILITY THERMAL TESTING HIGH TEMPERATURE TESTS |
|