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BS 5540-7

91st Edition, December 20, 1991

Complete Document

Evaluating Particulate Contamination of Hydraulic Fluids - Part 7: Method of Determining the Level of Contamination (by the Gravimetric Method)

Includes all amendments and changes through Reaffirmation Notice , January 1, 2003


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W/D NO S/S * SAME AS ISO 4405
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Product Details:

  • Revision: 91st Edition, December 20, 1991
  • Published Date: January 1, 2003
  • Status: Not Active, See comments below
  • Document Language: English
  • Published By: British Standards Institution (BSI)
  • Page Count: 10
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

Method whereby the amount of solid contaminant in a sample of hydraulic fluid can be determined. The principle involves filtering a known volume of the sample under vacuum conditions through a membrane filter. The increase in mass of the filter represents the solid impurity content.