BS 8465:2010 - Hydraulic fluid power. Monitoring the level of particulate contamination. Comparison membrane technique – BSI British Standards

BS 8465:2010

Hydraulic fluid power. Monitoring the level of particulate contamination. Comparison membrane technique

Status : Current, Under review   Published : October 2010

Format
PDF

Format
HARDCOPY



BS 8465:2010 Hydraulic fluid power. Monitoring the level of particulate contamination. Comparison membrane technique 

In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure within an enclosed circuit. The liquid is both a lubricant and power-transmitting medium. The presence of solid particulate contamination in the liquid interferes with its ability to lubricate and causes wear to the components. The extent of contamination in the liquid has a direct bearing on the performance and reliability of the system and has to be controlled to a level appropriate for the system concerned. The level of particulate contamination is usually determined by extracting a liquid sample from the hydraulic system and analyzing it for the number of particles at various sizes, often in a laboratory.

BS 8465:2010 is a British Standard which specifies methods to assess the level of particulate contamination in hydraulic liquids using an optical microscope. It includes assessment by two manual methods using either transmitted- or incident-lighting systems. It also includes procedures for evaluating and controlling the accuracy of the technique that ensure reproducible results.

Contents of BS 8465:

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Equipment
6 Chemicals
7 Preparation of reference membrane filters
8 Procedures
9 Test report
Annexes
Annex A (informative) Typical worksheet
Annex B (informative) Potential problems associated with preparing membrane filters
Bibliography
List of figures
Figure 1 – Typical comparison microscope
Figure A.1 – Typical worksheet


 




Standard NumberBS 8465:2010
TitleHydraulic fluid power. Monitoring the level of particulate contamination. Comparison membrane technique
StatusCurrent, Under review
Publication Date31 October 2010
Confirm Date01 May 2015
Normative References(Required to achieve compliance to this standard)BS ISO 4406, BS ISO 11500, BS 5540-3, BS EN ISO 4788, BS ISO 4407, BS ISO 5598:2020
Informative References(Provided for Information)ISO 11218:1993, ISO 4021:1992, DEF STAN 05-42, AS 4059
Draft Superseded By10/30127479 DC
DescriptorsContaminants, Control samples, Filtration, Contamination, Hydraulic transmission systems, Membrane filters, Sampling equipment, Particulate materials, Particle size measurement, Hydraulic equipment, Hydraulic fluids, Microscopic analysis
ICS75.120
CommitteeMCE/18
ISBN978 0 580 54925 0
PublisherBSI
FormatA4
DeliveryYes
Pages20
File Size2.6 MB
Price£130.00


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