Methods of testing water used in industry. Silica: reactive, total and suspended.
NORMA vydána dne 30.11.1983
Označení normy: BS 2690-104:1983
Datum vydání normy: 30.11.1983
Počet stran: 12
Přibližná hmotnost: 36 g (0.08 liber)
Země: Britská technická norma
Kategorie: Technické normy BS
Reactive silica by formation of molybdosilicic acid, reduction to molybdenum blue and spectrophotometric measurement. Applicable to up to 50 µg of SiO2 in up to 100 ml. Total silica by prior fusion to reactive silica. Applicable to up to 50 µg of SiO2 in up to 50 ml. Suspended silica by prior filtration and fusion. Applicable to up to 50 µg of SiO2 in up to 1 L. Status: Confirmed