BS 2690-104:1983

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Methods of testing water used in industry – Silica: reactive, total and suspended

Published By	Publication Date	Number of Pages
BSI	1983	12

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Categories: 13.060.25 - Water for industrial use, BSI

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Description

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.

Additional information

Status	Confirmed
Pages	12
Publication Date	1983-11-30
ISBN	0 580 11741 3
Standard Number	BS 2690-104:1983
Title	Methods of testing water used in industry – Silica: reactive, total and suspended
Descriptors	Interferences (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
Publisher	BSI
Committee	EH/3
ICS Codes	13.060.25 - Water for industrial use

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BS 2690-104:1983

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