ISO 3968:2017
Current
The latest, up-to-date edition.
Hydraulic fluid power — Filters — Evaluation of differential pressure versus flow
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24-07-2017
ISO 3668:2017 specifies a procedure for evaluating differential pressure versus flow characteristics of hydraulic filters and constitutes a basis for agreement between the filter manufacturer and user.
It also specifies a method for measurement of the differential pressure generated at different flow rates and viscosities by the relevant parts of a filter assembly, spin-on and any valves contained within the filter which are in the flow stream. The typical types of filter to be tested are as follows:
Type 1: which are spin-on filters in which the replaceable unit does not include a filter head (it might or might not include the element by-pass valve);
Type 2: which are spin-on filters in which the replaceable element is tested together with a filter head (it might or might not include the element by-pass valve);
Type 3: which are filter assembly, usually of the replacement element type, that is the housing (head and bowl) and element.
| DevelopmentNote |
Supersedes NFPA T3.10.14 (09/2004) Supersedes ISO/FDIS 3968. (07/2017)
|
| DocumentType |
Standard
|
| Pages |
17
|
| PublisherName |
International Organization for Standardization
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| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| IS 9269 : 2023 | Identical |
| BS ISO 3968:2017 | Identical |
| NEN ISO 3968 : 2017 | Identical |
| NF ISO 3968 : 2017 | Identical |
| GOST R ISO 3968 : 2011 | Identical |
| NBN E 48 108 : 1988 | Identical |
| NFE 48 677 : 1986 | Similar to |
| BS 6277:1982 | Identical |
| NBN E 48 012 : 1987 | Identical |
| BS 7403-12:2000 | Full-flow lubricating oil filters for internal combustion engines Filtration efficiency using particle counting, and contaminant retention capacity |
| MIL-DTL-8815-31 Base Document:2009 | Filter Elements, Non-Cleanable, Fluid Pressure, Hydraulic Line, 3,000 PSI, 5 Micron Absolute, -65 Degrees F to 275 Degrees F |
| BS ISO 16908:2014 | Hydraulic filter element test methods. Thermal conditioning and cold start-up simulation |
| 13/30258990 DC : 0 | BS ISO 16908 - HYDRAULIC FILTER ELEMENT TEST METHODS - THERMAL CONDITIONING AND COLD START-UP SIMULATION |
| BS ISO 14085-3:2015 | Aerospace series. Hydraulic filter elements. Test methods Filtration efficiency and retention capacity |
| BS 7403-1:1998 | Full-flow lubricating oil filters for internal combustion engines Methods of test for differential pressure/flow characteristics |
| BS ISO 19438:2003 | Diesel fuel and petrol filters for internal combustion engines. Filtration efficiency using particle counting and contaminant retention capacity |
| SAE J1985_201310 | Fuel Filter - Initial Single-Pass Efficiency Test Method |
| ISO 16889:2008 | Hydraulic fluid power — Filters — Multi-pass method for evaluating filtration performance of a filter element |
| ISO/TR 13353:1994 | Diesel fuel and petrol filters for internal combustion engines — Initial efficiency by particule counting retention capacity and gravimetric efficiency |
| BS ISO 27407:2010 | Hydraulic fluid power. Marking of performance characteristics on hydraulic filters |
| PD ISO/TR 15640:2011 | Hydraulic fluid power contamination control. General principles and guidelines for selection and application of hydraulic filters |
| ISO/TS 13353:2002 | Diesel fuel and petrol filters for internal combustion engines — Initial efficiency by particule counting |
| ISO/TS 16332:2006 | Diesel engines — Fuel filters — Method for evaluating fuel/water separation efficiency |
| ISO 16908:2014 | Hydraulic filter element test methods — Thermal conditioning and cold start-up simulation |
| BS 7403-2:1998 | Full-flow lubricating oil filters for internal combustion engines Method of test for element by-pass valve characteristics |
| MIL-DTL-8815-32 Base Document:2010 | Filter Elements, Non-Cleanable, Fluid Pressure, Hydraulic Line, 3000 PSI, 5 Micron Absolute, - 65 Degrees F to 275 Degrees F, H-60 Aircraft |
| BS ISO 14085-1:2015 | Aerospace series. Hydraulic filter elements. Test methods Test sequence |
| BS ISO 16889 : 2008 | HYDRAULIC FLUID POWER - FILTERS - MULTI-PASS METHOD FOR EVALUATING FILTRATION PERFORMANCE OF A FILTER ELEMENT |
| 08/30170008 DC : DRAFT SEP 2008 | BS ISO 27407 - HYDRAULIC FLUID POWER - MARKING OF PERFORMANCE CHARACTERISTICS ON HYDRAULIC FILTERS |
| 15/30271100 DC : 0 | BS ISO 16332 - DIESEL ENGINES - FUEL FILTERS - METHOD FOR EVALUATING FUEL/ WATER SEPARATION EFFICIENCY |
| BS ISO 14085-2:2015 | Aerospace series. Hydraulic filter elements. Test methods Conditioning |
| BS 7403-3:1998 | Full-flow lubricating oil filters for internal combustion engines Methods of test for resistance to high differential pressure and to elevated temperature |
| ISO 16860:2005 | Hydraulic fluid power — Filters — Test method for differential pressure devices |
| ISO 27407:2010 | Hydraulic fluid power — Marking of performance characteristics on hydraulic filters |
| ISO 4548-12:2017 | Methods of test for full-flow lubricating oil filters for internal combustion engines — Part 12: Filtration efficiency using particle counting and contaminant retention capacity |
| ISO/TS 23556:2007 | Performance test method for diesel engine soot-removal devices in lubricating oils — Initial filtration efficiency |
| BS ISO 11170:2013 | Hydraulic fluid power. Sequence of tests for verifying performance characteristics of filter elements |
| ISO 11170:2013 | Hydraulic fluid power — Sequence of tests for verifying performance characteristics of filter elements |
| 13/30271035 DC : 0 | BS ISO 14085-3 - AEROSPACE SERIES - HYDRAULIC FILTER ELEMENTS - TEST METHODS - PART 3: FILTRATION EFFICIENCY AND RETENTION CAPACITY |
| 13/30271032 DC : 0 | BS ISO 14085-2 - AEROSPACE SERIES - HYDRAULIC FILTER ELEMENTS - TEST METHODS - PART 2: CONDITIONING |
| BS ISO 16860:2005 | Hydraulic fluid power. Filters. Test method for differential pressure devices |
| 16/30316730 DC : 0 | BS ISO 4548-12 - METHODS OF TEST FOR FULL-FLOW LUBRICATING OIL FILTERS FOR INTERNAL COMBUSTION ENGINES - PART 12: FILTRATION EFFICIENCY USING PARTICLE COUNTING, AND CONTAMINANT RETENTION CAPACITY |
| ISO 19438:2003 | Diesel fuel and petrol filters for internal combustion engines — Filtration efficiency using particle counting and contaminant retention capacity |
| SAE J2312_201305 | Automatic Transmission Intake Filter Test Procedure |
| ISO/TR 15640:2011 | Hydraulic fluid power contamination control — General principles and guidelines for selection and application of hydraulic filters |
| ISO 14085-1:2015 | Aerospace series — Hydraulic filter elements — Test methods — Part 1: Test sequence |
| BS ISO 4548-12:2017 | Methods of test for full-flow lubricating oil filters for internal combustion engines Filtration efficiency using particle counting and contaminant retention capacity |
| 13/30271029 DC : 0 | BS ISO 14085-1 - AEROSPACE SERIES - HYDRAULIC FILTER ELEMENTS - TEST METHODS - PART 1: TEST SEQUENCE |
| 11/30214548 DC : 0 | BS ISO 11170 - HYDRAULIC FLUID POWER - SEQUENCE OF TESTS FOR VERIFYING PERFORMANCE CHARACTERISTICS OF FILTER ELEMENTS |
| 98/717481 DC : DRAFT DEC 1998 | ISO/CD 16009 - HYDRAULIC FLUID POWER - FILTER - METHOD FOR DETERMINING FILTRATION PERFORMANCE OF AN OFF-LINE ELEMENT |
| 06/30128772 DC : DRAFT OCT 2006 | ISO 16889 - HYDRAULIC FLUID POWER FILTERS - MULTI-PASS METHOD FOR FILTRATION PERFORMANCE OF A FILTER ELEMENT |
| DIN 65385:1991-12 | AEROSPACE; HYDRAULIC FLUID POWER; FILTER ELEMENTS; REPORTING OF TEST DATA |
| DD ISO/TS 23556:2007 | Performance test method for diesel engine soot-removal devices in lubricating oils. Initial filtration efficiency |
| ISO 14085-2:2015 | Aerospace series — Hydraulic filter elements — Test methods — Part 2: Conditioning |
| MIL-DTL-8815-33 Base Document:2011 | Filter Elements, Non-Cleanable, Fluid Pressure, Hydraulic Line, 3500 PSI, 5 Micron Absolute,-65 Degrees F to 275 Degrees F, Aviation Ground Power Unit (AGPU) |
| ISO 14085-3:2015 | Aerospace series — Hydraulic filter elements — Test methods — Part 3: Filtration efficiency and retention capacity |
| ISO 16332:2018 | Diesel engines — Fuel filters — Method for evaluating fuel/water separation efficiency |
| NFPA T2.12.11.2 : 2007 : R2012 | HYDRAULIC FLUID POWER COMPONENTS - ASSESSMENT OF RELIABILITY BY TESTING |
| NFPA T2.12.11.2:2007 | HYDRAULIC FLUID POWER COMPONENTS - ASSESSMENT OF RELIABILITY BY TESTING |
| SAE J2321_200212 | Ship Systems and Equipment—General Specification for Filter Elements—Hydraulic and Lube Oil Service |
| ISO 9110-1:1990 | Hydraulic fluid power — Measurement techniques — Part 1: General measurement principles |
| ISO 3675:1998 | Crude petroleum and liquid petroleum products — Laboratory determination of density — Hydrometer method |
| ISO 5598:2008 | Fluid power systems and components — Vocabulary |
| ISO 6415:2005 | Internal combustion engines — Spin-on filters for lubricating oil — Dimensions |
| ISO 1219-1:2012 | Fluid power systems and components — Graphical symbols and circuit diagrams — Part 1: Graphical symbols for conventional use and data-processing applications |
| ISO 16889:2008 | Hydraulic fluid power — Filters — Multi-pass method for evaluating filtration performance of a filter element |
| ISO 2909:2002 | Petroleum products — Calculation of viscosity index from kinematic viscosity |
| ISO 9110-2:1990 | Hydraulic fluid power — Measurement techniques — Part 2: Measurement of average steady-state pressure in a closed conduit |
| ISO 4021:1992 | Hydraulic fluid power — Particulate contamination analysis — Extraction of fluid samples from lines of an operating system |
| ISO 2944:2000 | Fluid power systems and components — Nominal pressures |
| ISO 3448:1992 | Industrial liquid lubricants — ISO viscosity classification |
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