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| 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 2. Метод измерения pH |
| 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 2: pH method |
| Описание (англ.): | May be used as a quality-control test during manufacture and conversion of PVC compounds and for coloured compounds. Is not recommended for compounds in the form of dry blends. Definesthe stability time. The principle consists in exposing a sample of the material at an agreed temperature in a gas stream, followed by absorption of the hydrogen chloride evolved in a 0.1 mol/l solution of sodium chloride. The amount of hydrogen chloride evolved is measured by recording the change in pH of the sodium chloride solution. Figures show the general arrangement of apparatus and details of the dehydrochlorination cell. Together with three other parts of ISO 182, cancels and replaces ISO Recommendation R 182:1970. |
| Заменяет стандарты: | ISO/R 182(1970.06) |
| Дата регистрации: | 01.02.91 |
| Дата введения: | 15.12.90 |
| Код КГС: | Л29 |
| Код ОКСТУ: | 2243 |
| Код ОКС(МКС): | 83.080.20 |
| Код ОКП: | 2243 |
| Нормативные ссылки: | DIN 53381-1-1983, EQV*BS 2782 PART 1 METHOD 130B(1991/BSI), EQV*NF T51-785-2(1993/AFNOR), EQV*NF ISO 182-2(1993/AFNOR), EQV*prEN ISO 182-2-1998, EQV ISO 565-1990*ISO 3696-1987*ISO 4793-1980*ISO 6353-2-1983 |
| Ключевые слова: | HIGH-TEMPERATURE TESTING PH MEASUREMENT PLASTICS POLYVINYL CHLORIDE TESTING TESTS THERMAL STABILITY THERMAL TESTING HIGH TEMPERATURE TESTS |
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