Coal and coke; determination of total sulphur; eschka method
Описание (англ.):
The sample of coal or coke is ignited in intimate contact with Eschka mixture in an oxidizing atmosphere, to remove combustible matter and to convert the sulphur to sulphate. This is then extracted and determined by one of the two following methods: - Gravimetric method by prcipitation with barium chloride; - Titrimetric method by precipitation with barium chromate, followed by iodometric determination of the chromate passing into solution.
Заменён стандартами:
ISO 334(1992.12)
Дата введения:
01.01.75
Дата отмены:
01.12.92
Нормативные ссылки:
BS 1016 PART 6-1977, NEQ*BS 1016 PART 7-1977, NEQ*DIN 51724-1-1986, NEQ*DS/ISO 334-1981, EQV*NEN-ISO 334-1980, EQV*NF M03-008-1972, NEQ*UNI 7584-1976, EQV
Ключевые слова:
CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING COAL DETERMINATION OF CONTENT ESCHKAS REAGENT GRAVIMETRIC ANALYSIS SOLID FUELS SULPHUR VOLUMETRIC ANALYSIS CHEMICAL ANALYSIS AND TESTIN