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ISO 4407:2002

Current
Current

The latest, up-to-date edition.

Hydraulic fluid power — Fluid contamination — Determination of particulate contamination by the counting method using an optical microscope
Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

02-05-2002

This International Standard specifies methods for determining the level of particulate contamination in liquids used in hydraulic systems by counting the number of particles deposited on the surface of a membrane filter using an optical microscope. It includes particle counting by two manual methods and image analysis, using either transmitted or incident lighting systems.

Particle sizes greater than or equal to 2 micrometres can be sized and counted by this method, but the resolution and accuracy of the results will depend upon the optical system used and the capabilities of the operator.

All hydraulic fluids with a wide range of contamination levels can be analysed according to this International Standard. However, the counting uncertainty at the larger particle sizes increases if the volume filtered is reduced to allow smaller sized particles to be counted, where a fine precipitate or a high particle concentration is present.

DevelopmentNote
Supersedes ISO/DIS 4407 (05/2002)
DocumentType
Standard
Pages
14
PublisherName
International Organization for Standardization
Status
Current
Supersedes

Standards Relationship
UNI ISO 4407 : 2005 Identical
NBN E 48 012 : 1987 Identical
BS ISO 4407:2002 Identical
GOST ISO 4407 : 2006 Identical
NEN ISO 4407 : 2002 Identical
NF ISO 4407 : 2002 Identical
SS-ISO 4407:2002 Identical
SN ISO 4407 : 2005 Identical
PN-ISO 4407:2021-03 Identical
NFE 48 651 : 1986 Similar to
BS 5540-8:1991 Identical

BS EN 60970:2007 Insulating liquids. Methods for counting and sizing particles
BS ISO 16431:2012 Hydraulic fluid power. System clean-up procedures and verification of cleanliness of assembled systems
BS ISO 14085-6:2015 Aerospace series. Hydraulic filter elements. Test methods Initial cleanliness level
07/19969755 DC : 0 BS ISO 11500 - HYDRAULIC FLUID POWER - DETERMINATION OF PARTICULATE CONTAMINATION LEVEL OF A LIQUID SAMPLE BY AUTOMATIC PARTICLE COUNTING USING THE LIGHT EXTINCTION PRINCIPLE
BS ISO 16232-7:2007 Road vehicles. Cleanliness of components of fluid circuits Particle sizing and counting by microscopic analysis
03/100561 DC : DRAFT JULY 2003 IEC 60422 ED.3 - SUPERVISION AND MAINTENANCE GUIDE FOR MINERAL INSULATING OILS IN ELECTRICAL EQUIPMENT
BS ISO 4406:2017 Hydraulic fluid power. Fluids. Method for coding the level of contamination by solid particles
ISO 3938:1986 Hydraulic fluid power — Contamination analysis — Method for reporting analysis data
PD ISO/TR 15640:2011 Hydraulic fluid power contamination control. General principles and guidelines for selection and application of hydraulic filters
14/30244780 DC : 0 BS ISO 19859 - GAS TURBINE APPLICATIONS - REQUIREMENTS FOR POWER GENERATION
I.S. EN 60422:2013 MINERAL INSULATING OILS IN ELECTRICAL EQUIPMENT - SUPERVISION AND MAINTENANCE GUIDANCE (IEC 60422:2013 (EQV))
PD ISO/TR 10686:2013 Hydraulic fluid power. Method to relate the cleanliness of a hydraulic system to the cleanliness of the components and hydraulic fluid that make up the system
BS ISO 16232-5:2007 Road vehicles. Cleanliness of components of fluid circuits Method of extraction of contaminants on functional test bench
DD ISO/TS 11365:2011 Petroleum and related products. Guidance for the maintenance and use of triaryl phosphate ester turbine-control fluids
BS ISO 16232-3:2007 Road vehicles. Cleanliness of components of fluid circuits Method of extraction of contaminants by pressure rinsing
04/30098086 DC : DRAFT APR 2004 ISO 16232-3 - ROAD VEHICLES - CLEANLINESS OF COMPONENTS OF FLUID CIRCUITS - PART 3: METHOD OF EXTRACTION OF CONTAMINANTS BY PRESSURE RINSING
ISO 16431:2012 Hydraulic fluid power — System clean-up procedures and verification of cleanliness of assembled systems
ISO/TS 11366:2011 Petroleum and related products — Guidance for in-servicing of lubricating oils for steam, gas and combined-cycle turbines
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BS ISO 12500-3:2009 Filters for compressed air. Test methods Particulates
05/30138884 DC : DRAFT SEP 2005
PD ISO/TS 16431:2002 Hydraulic fluid power. Assembled systems. Verification of cleanliness
ISO 14085-6:2015 Aerospace series Hydraulic filter elements Test methods Part 6: Initial cleanliness level
16/30273511 DC : 0 BS ISO 23309 - HYDRAULIC FLUID POWER SYSTEMS - ASSEMBLED SYSTEMS - METHODS OF CLEANING LINES BY FLUSHING
10/30215366 DC : 0 BS EN 60422 - MINERAL INSULATING OILS IN ELECTRICAL EQUIPMENT - SUPERVISION AND MAINTENANCE GUIDANCE
16/30323482 DC : 0 BS ISO 11365 - PETROLEUM AND RELATED PRODUCTS - MAINTENANCE AND USE GUIDE FOR TRIARYL PHOSPHATE ESTER TURBINE CONTROL FLUIDS
ISO/TR 16386:2014 Impact of changes in ISO fluid power particle counting Contamination control and filter test standards
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/TR 16144:2002 Hydraulic fluid power Calibration of liquid automatic particle counters Procedures used to certify the standard reference material SRM 2806
BS ISO 18413:2015 Hydraulic fluid power. Cleanliness of components. Inspection document and principles related to contaminant extraction and analysis, and data reporting
SAE J 1227 : 2013 ASSESSING CLEANLINESS OF HYDRAULIC FLUID POWER COMPONENTS AND SYSTEMS
ISO/TS 11365:2011 Petroleum and related products Guidance for the maintenance and use of triaryl phosphate ester turbine-control fluids
I.S. EN 60970:2007/AC:2008 INSULATING LIQUIDS - METHODS FOR COUNTING AND SIZING PARTICLES
ASTM D 6813 : 2002 : REV A : R2007 Standard Guide for Performance Evaluation of Hydraulic Fluids for Piston Pumps
ASTM D 6813 : 2002 Standard Guide for Performance Evaluation of Hydraulic Fluids for Piston Pumps
ASTM D 6813 : 2002 : REV A : R2013 Standard Guide for Performance Evaluation of Hydraulic Fluids for Piston Pumps (Withdrawn 2015)
ASTM D 6813 : 2002 : REV A Standard Guide for Performance Evaluation of Hydraulic Fluids for Piston Pumps
SAE AS 4059F : 2013 AEROSPACE FLUID POWER - CONTAMINATION CLASSIFICATION FOR HYDRAULIC FLUIDS
BIS IS 13236 : 2013 INSULATING LIQUIDS - METHODS FOR COUNTING AND SIZING PARTICLES
ISO 21018-1:2008 Hydraulic fluid power Monitoring the level of particulate contamination of the fluid Part 1: General principles
BS ISO 9940:2015 Aerospace series. Fluid, hydraulic, phosphate ester-base, fire resistant. Technical specification
API TR 17TR5 : 2012 AVOIDANCE OF BLOCKAGES IN SUBSEA PRODUCTION CONTROL AND CHEMICAL INJECTION SYSTEMS
05/30098235 DC : 0 ISO 21081-1 - HYDRAULIC FLUID POWER - MONITORING THE LEVEL OF PARTICULATE CONTAMINATION OF THE FLUID - PART 1: GENERAL PRINCIPLES
DD ISO/TR 16144:2002 Hydraulic fluid power. Calibration of liquid automatic particle counters. Procedures used to certify the standard reference material SRM 2806
14/30302298 DC : 0 BS ISO 9940 - AEROSPACE SERIES - FLUID, HYDRAULIC, PHOSPHATE ESTER-BASE, FIRE RESISTANT - TECHNICAL SPECIFICATION
13/30290460 DC : 0 BS ISO 9940 - AEROSPACE SERIES - FLUID, HYDRAULIC, PHOSPHATE ESTER-BASE, FIRE RESISTANT - TECHNICAL SPECIFICATION
BS 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
00/704296 DC : DRAFT FEB 2000 ISO/CD 16431 - HYDRAULIC FLUID POWER - ASSEMBLED SYSTEMS - METHOD FOR ACHIEVING ROLL-OFF CLEANLINESS
04/30098093 DC : DRAFT APR 2004 ISO 16232-5 - ROAD VEHICLES - CLEANLINESS OF COMPONENTS OF FLUID CIRCUITS - PART 5: METHOD OF EXTRACTION OF CONTAMINANTS ON FUNCTIONAL TEST BENCH
ISO/TR 10686:2013 Hydraulic fluid power Method to relate the cleanliness of a hydraulic system to the cleanliness of the components and hydraulic fluid that make up the system
07/30164305 DC : 0 BS ISO 12500-3 - FILTERS FOR COMPRESSED AIR - TEST METHODS - PART 3: PARTICULATES
BS ISO 16232-2:2007 Road vehicles. Cleanliness of components of fluid circuits Method of extraction of contaminants by agitation
SAE MS 1000 : 2013 LUBRICANTS, INDUSTRIAL OILS, AND RELATED PRODUCTS - CLASSIFICATION
ISO 12500-3:2009 Filters for compressed air Test methods Part 3: Particulates
ASTM D 7973 : 2014 Standard Guide for Monitoring Failure Mode Progression in Plain Bearings
ISO 9940:2015 Aerospace series Fluid, hydraulic, phosphate ester-base, fire resistant Technical specification
ISO 16232-2:2007 Road vehicles Cleanliness of components of fluid circuits Part 2: Method of extraction of contaminants by agitation
ISO/TR 15640:2011 Hydraulic fluid power contamination control General principles and guidelines for selection and application of hydraulic filters
ISO 11365:2017 Petroleum and related products — Requirements and guidance for the maintenance of triaryl phosphate ester turbine control fluids
API STD 17F : 2017 SUBSEA PRODUCTION CONTROL SYSTEMS
ISO 16232-7:2007 Road vehicles Cleanliness of components of fluid circuits Part 7: Particle sizing and counting by microscopic analysis
IEC 60970:2007 Insulating liquids - Methods for counting and sizing particles
BS ISO/TR 16386:1999 Impact of changes in ISO fluid power particle counting. Contamination control and filter test standards
BS ISO 19859:2016 Gas turbine applications. Requirements for power generation
08/30187368 DC : DRAFT JULY 2008 BS ISO 11365 - PETROLEUM AND RELATED PRODUCTS - MAINTENANCE AND USE GUIDE FOR TRIARYL PHOSPHATE ESTER TURBINE CONTROL FLUIDS
08/30187364 DC : DRAFT JULY 2008 BS ISO 11366 - PETROLEUM AND RELATED PRODUCTS - GUIDANCE FOR IN-SERVICE MONITORING OF LUBRICATING OILS FOR STEAM, GAS AND COMBINED-CYCLE TURBINES
UNE-EN 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
IEC 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
EN 60970:2007/corrigendum:2008 INSULATING LIQUIDS - METHODS FOR COUNTING AND SIZING PARTICLES
PD ISO/TR 16386:2014 Impact of changes in ISO fluid power particle counting. Contamination control and filter test standards
12/30250727 DC BS EN ISO 13628-6 - PETROLEUM AND NATURAL GAS INDUSTRIES - DESIGN AND OPERATION OF SUBSEA PRODUCTION SYSTEMS - PART 6: SUBSEA PRODUCTION CONTROL SYSTEMS
BS ISO 11365:2017 Petroleum and related products. Requirements and guidance for the maintenance of triaryl phosphate ester turbine control fluids
BS 5540-1:1978 Specification for evaluating particulate contamination of hydraulic fluids Qualifying and controlling of cleaning methods for sample containers
BS EN 60422:2013 Mineral insulating oils in electrical equipment. Supervision and maintenance guidance
09/30176303 DC : 0 BS ISO 16431 - HYDRAULIC FLUID POWER - ASSEMBLED SYSTEMS - SYSTEM CLEAN-UP PROCEDURES AND VERIFICATION OF CLEANLINESS
11/30075025 DC : 0 ISO 21017 - HYDRAULIC FLUID POWER - CLEANLINESS OF PARTS AND COMPONENTS - EXPRESSION OF PARTICULATE CONTAMINATION LEVEL
ISO/TS 18409:2018 Hydraulic fluid power Hose and hose assemblies Method of collecting a fluid sample for analyzing the cleanliness of a hose or hose assembly
13/30271044 DC : 0 BS ISO 14085-6 - AEROSPACE SERIES - HYDRAULIC FILTER ELEMENTS - TEST METHODS - PART 6: INITIAL CLEANLINESS LEVEL
UNI ISO 4406 : 2013 HYDRAULIC FLUID POWER - FLUIDS - METHOD FOR CODING THE LEVEL OF CONTAMINATION BY SOLID PARTICLES
09/30204130 DC : DRAFT MAY 2009 BS ISO 11217 - AEROSPACE - HYDRAULIC SYSTEM FLUID CONTAMINATION - LOCATION OF SAMPLING POINTS AND CRITERIA FOR SAMPLING
CEI EN 60970 : 2007 INSULATING LIQUIDS - METHODS FOR COUNTING AND SIZING PARTICLES
04/30098083 DC : DRAFT APR 2004 ISO 16232-2 - ROAD VEHICLES - FLUID CIRCUITS - CLEANLINESS OF COMPONENTS - PART 2: METHOD OF EXTRACTION OF CONTAMINANTS BY AGITATION
ISO 3722:1976 Hydraulic fluid power — Fluid sample containers — Qualifying and controlling cleaning methods
ISO 16232-3:2007 Road vehicles Cleanliness of components of fluid circuits Part 3: Method of extraction of contaminants by pressure rinsing
ISO 18413:2015 Hydraulic fluid power Cleanliness of components Inspection document and principles related to contaminant extraction and analysis, and data reporting
ISO 16232-5:2007 Road vehicles Cleanliness of components of fluid circuits Part 5: Method of extraction of contaminants on functional test bench
DD ISO/TS 11366:2011 Petroleum and related products. Guidance for in-servicing of lubricating oils for steam, gas and combined-cycle turbines
EN 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance

ISO 5598:2008 Fluid power systems and components Vocabulary
ISO 4406:1999 Hydraulic fluid power Fluids Method for coding the level of contamination by solid particles
ISO 4788:2005 Laboratory glassware Graduated measuring cylinders
ISO 3722:1976 Hydraulic fluid power — Fluid sample containers — Qualifying and controlling cleaning methods
ISO 14644-1:2015 Cleanrooms and associated controlled environments Part 1: Classification of air cleanliness by particle concentration
ISO 4021:1992 Hydraulic fluid power — Particulate contamination analysis — Extraction of fluid samples from lines of an operating system

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