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Homepage>BS Standards>13 ENVIRONMENT. HEALTH PROTECTION. SAFETY>13.060 Water quality>13.060.25 Water for industrial use>BS 2690-104:1983 Methods of testing water used in industry Silica: reactive, total and suspended
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immediate downloadReleased: 1983-11-30
BS 2690-104:1983 Methods of testing water used in industry Silica: reactive, total and suspended

BS 2690-104:1983

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

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Standard number:BS 2690-104:1983
Pages:12
Released:1983-11-30
ISBN:0 580 11741 3
Status:Standard
DESCRIPTION

BS 2690-104:1983


This standard BS 2690-104:1983 Methods of testing water used in industry is classified in these ICS categories:
  • 13.060.25 Water for industrial use
  • 13.060.50 Examination of water for chemical substances

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.