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| Название (рус.): | Кислота соляная техническая. Определение содержания окисляющих и восстанавливающих веществ. Титриметрический метод |
| Название (англ.): | Hydrochloric acid for industrial use; Determination of oxidizing or reducing substances content; Titrimetric method |
| Описание (англ.): | The method is applicable to products having oxidizing or reducing matter contents equal to or greater than 0.001 % (m/m). The principle is based on detection of the presence of these matter by a preliminary qualitative test. In the case of oxidizing matter adding of potassium iodide solution and titration of theliberated iodine with sodium thiosulphate standard volumetric solution until the blue colour disappears. In the case of reducing matter transferring of the test portion to an exactly measured volume of iodine solution and titration of the excess of iodine with the sodium thiosulphate standard volumetric solution. - Cancels and replaces ISO Recommendation R 908-1968. |
| Дата введения: | 01.03.80 |
| Дата отмены: | 30.05.02 |
| Код КГС: | Л19 |
| Код ОКСТУ: | 2122;2109 |
| Код ОКС(МКС): | 71.060.30 |
| Код ОКП: | 2122;2109 |
| Нормативные ссылки: | NBN T 03-005-1980, EQV*NF T20-272-1968, NEQ*NP-868(1989/IPQ), EQV*SFS-ISO 908(1989/SFS), EQV |
| Ключевые слова: | CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING CHEMICAL COMPOUNDS CHLORINE CONNECTIONS DETERMINATION OF CONTENT HYDROCHLORIC ACID SULPHUR DIOXIDE VOLUMETRIC ANALYSIS CHEMICAL ANALYSIS AND TESTIN |
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