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BS 2690-104

83rd Edition, November 30, 1983

Complete Document

Methods of testing Water Used in Industry - Part 104: Silica: Reactive, Total and Suspended

Includes all amendments and changes through Reaffirmation Notice , May 1, 2017


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Product Details:

  • Revision: 83rd Edition, November 30, 1983
  • Published Date: May 1, 2017
  • Status: Active, Most Current
  • Document Language: English
  • Published By: British Standards Institution (BSI)
  • Page Count: 12
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

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.