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04/30098167 DC : DRAFT APR 2004

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

ISO 16232-9 - ROAD VEHICLES - FLUID CIRCUITS - CLEANLINESS OF COMPONENTS - PART 9: PARTICLE SIZING AND COUNTING BY AUTOMATIC LIGHT EXTINCTION PARTICLE COUNTER
Superseded date

06-29-2007

Published date

11-23-2012

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 General
6 Equipment and apparatus
  6.1 Liquids
      6.1.1 Diluent and rinsing liquid
      6.1.2 Clean-up filter
      6.1.3 Liquid dispensers
      6.1.4 Filtration apparatus
  6.2 Sample containers
  6.3 Specific items
      6.3.1 Intermediate receptacle
      6.3.2 Sampling apparatus
      6.3.3 Stirrer
      6.3.4 Flow metre
      6.3.5 Device for degassing (optional)
  6.4 Analysis equipment
      6.4.1 Automatic light extinction particle counter (APC)
      6.4.2 Computer
      6.4.3 Influencing parameters
      6.4.4 Measuring range
      6.4.5 Accuracy
  6.5 Environment conditions and precautions
      6.5.1 Location
      6.5.2 Electrical interference
      6.5.3 Chemicals
7 Calibration and verification
  7.1 Verification
  7.2 Calibration
8 Procedure
  8.1 Validation
  8.2 Conditioning of the analysis set-up
  8.3 Blank check of the analysis set-up
  8.4 Preparation of the extraction sample
      8.4.1 Pre-assessment - suitability and dilution
      8.4.2 Re-dispersion of contaminants
  8.5 Sample analysis
9 Results
  9.1 Calculation
  9.2 Expression
Annex A (informative) APC analysis
Annex B (informative) Summary of the analysis procedure
  B.1 Summary of the analysis procedure
Annex C (informative) Example of configuration - Sampling
                      apparatus
  C.1 Configurations
Annex D (informative) Supplementary procedures
  D.1 Sample dilution
      D.1.1 Single-step dilution
  D.2 Analysis of different liquids
  D.3 Checking the zero count-rate of the instrument
Annex E (informative) Typical analysis report
  E.1 Analysis protocol
  E.2 Analysis result
Bibliography

Committee
MCE/22
DocumentType
Draft
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

ISO 11943:1999 Hydraulic fluid power On-line automatic particle-counting systems for liquids Methods of calibration and validation
BS 5540-6:1990 Evaluating particulate contamination of hydraulic fluids Method of calibrating liquid automatic particle-count instruments (using mono-sized latex spheres)
ISO 11500:2008 Hydraulic fluid power — Determination of the particulate contamination level of a liquid sample by automatic particle counting using the light-extinction principle
ISO 11171:2016 Hydraulic fluid power Calibration of automatic particle counters for liquids
ISO 13323-1:2000 Determination of particle size distribution Single-particle light interaction methods Part 1: Light interaction considerations
ISO 18413:2015 Hydraulic fluid power Cleanliness of components Inspection document and principles related to contaminant extraction and analysis, and data reporting
ISO 4021:1992 Hydraulic fluid power — Particulate contamination analysis — Extraction of fluid samples from lines of an operating system

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