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  • BSI
    BS 2690-104:1983 Methods of testing water used in industry - Silica: reactive, total and suspended
    Edition: 1983
    $281.30
    / user per year

Description of BS 2690-104:1983 1983

The methods described are for the determination, in industrial waters, of reactive silica (spectrophotometry — reduced molybdosilicic acid), total silica (fusion and spectrophotometry) and suspended silica (filtration, fusion and spectrophotometry).

Section 104.1 Reactive silica: spectrophotometric method (reduced molybdosilicic acid)



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.

Standard NumberBS 2690-104:1983
TitleMethods of testing water used in industry - Silica: reactive, total and suspended
StatusConfirmed
Publication Date1983-11-30
DescriptorsInterferences (chemical), Insoluble matter determination, Industrial, Evaporation residue determination, Calibration, Quantitative analysis, Filtration, Colorimetry, Spectrophotometry, Silicon dioxide, Melting, Water testing, Water, Suspensions (chemical), Determination of content, Chemical analysis and testing
ICS13.060.25 Water for industrial use, 13.060.50 Examination of water for chemical substances
CommitteeEH/3
ISBN0 580 11741 3
PublisherBSI
Pages12

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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