Specifies methods of determining the sulphate and pyritic sulphur contents and of calculating the amount of organic sulphur present. The sulphate is determined by extraction coal with dilute hydrochloric acid and determining the sulphate in the extract either gravimetrically or titrimatrically. The pyritic sulphur isdetermined either indirectly by the amount of iron combined in the pyritic state or by reduction of the sulphur with nascent hydrogen and subsequent iodometrical determination. The organic sulphur is calculated from the difference between the two sulphur forms mentioned above and the total sulphur.
Заменён стандартами:
ISO 157:1996
Дата введения:
01.01.75
Дата отмены:
01.06.96
Код КГС:
А19
Код ОКСТУ:
0309;0320
Код ОКС(МКС):
73.040
Код ОКП:
0309;0320
Нормативные ссылки:
BS 1016 PART 11-1977, EQV*DIN 51724-2-1979, NEQ*DS/ISO 157-1981, EQV
Ключевые слова:
BITUMINOUS COAL CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING COAL DETERMINATION OF CONTENT SOLID FUELS SULPHUR CHEMICAL ANALYSIS AND TESTIN