1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58circuits Part 5: Method of extraction of contaminants on functional test benchICS 13.040.50; 43.180
2、Road vehicles Cleanliness of components of fluid BRITISH STANDARDBS ISO 16232-5:2007BS ISO 16232-5:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 June 2007 BSI 2007ISBN 978 0 580 50924 7Amendments issued since publicationAmd. No. Date
3、 Commentscontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard was published by BSI. It is the UK implementation of ISO 16232-5:2007. The UK participation in its preparation
4、was entrusted to Technical Committee MCE/22, Engines for road vehicles.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a Reference numberISO 16232-5:2007(E)INTERNATIONAL STA
5、NDARD ISO16232-5First edition2007-06-01Road vehicles Cleanliness of components of fluid circuits Part 5: Method of extraction of contaminants on functional test bench Vhicules routiers Propret des composants des circuits de fluide Partie 5: Mthode dextraction des contaminants sur banc dessai fonctio
6、nnel BS ISO 16232-5:2007ii iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 Principle. 2 5 Equipment . 2 5.1 General. 2 5.2 Test liquid 2 5.3 Test component container. 2 5.4 Test set up . 2 5.5 Pressure rinsing liquid dispenser. 3 5.6 Co
7、llection equipment . 3 5.7 Sampling containers. 3 5.8 Environmental conditions 3 5.9 Health and safety 3 6 Procedure 3 6.1 Handling and storage . 3 6.2 Extraction procedure set up and validation. 4 6.3 Blank test. 6 6.4 Component routine test . 8 7 Analysis of the extraction liquid . 8 8 Presentatio
8、n of results. 9 Annex A (informative) Typical test stands and operating protocol for extraction by functional test bench 10 Annex B (informative) Synopsis of the extraction procedure set up and validation 13 Annex C (informative) Example of data sheet for the extraction procedure on functional test
9、bench 14 Annex D (informative) Synopsis of the routine test procedure. 17 Bibliography . 18 BS ISO 16232-5:2007iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standard
10、s is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take
11、part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is t
12、o prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility
13、that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 16232-5 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 5, Engine test. ISO 16232 consists of the followi
14、ng parts, under the general title Road vehicles Cleanliness of components of fluid circuits: Part 1: Vocabulary Part 2: Method of extraction of contaminants by agitation Part 3: Method of extraction of contaminants by pressure rinsing Part 4: Method of extraction of contaminants by ultrasonic techni
15、ques Part 5: Method of extraction of contaminants on functional test bench Part 6: Particle mass determination by gravimetric analysis Part 7: Particle sizing and counting by microscopic analysis Part 8: Particle nature determination by microscopic analysis Part 9: Particle sizing and counting by au
16、tomatic light extinction particle counter Part 10: Expression of results BS ISO 16232-5:2007vIntroduction The presence of particulate contamination in a liquid system is acknowledged to be a major factor governing the life and reliability of that system. The presence of particles residual from the m
17、anufacturing and assembly processes will cause a substantial increase in the wear rates of the system during the initial run-up and early life, and may even cause catastrophic failures. In order to achieve reliable performance of components and systems, control over the amount of particles introduce
18、d during the build phase is necessary, and measurement of particulate contaminants is the basis of control. The ISO 16232 series has been drafted to fulfil the requirements of the automotive industry, since the function and performance of modern automotive fluid components and systems are sensitive
19、to the presence of a single or a few critically sized particles. Consequently, ISO 16232 requires the analysis of the total volume of extraction liquid and of all contaminants collected using an approved extraction method. The ISO 16232 series has been based on existing ISO International Standards s
20、uch as those developed by ISO/TC 131/SC6. These International Standards have been extended, modified and new ones have been developed to produce a comprehensive suite of International Standards to measure and report the cleanliness levels of parts and components fitted to automotive fluid circuits.
21、This part of ISO 16232 defines procedures for the removal and collection of contaminants from components using a flow of test liquid in conditions as close as possible to the ones components are actually used in so that their cleanliness can be evaluated. The cleanliness level of a component, as det
22、ermined according to this method, depends to a large extent on the parameters of the test such as the capacity of the test bench to reproduce the operating conditions and the requirements of the component (e.g. flow conditions, duration of flowing, etc). All parameters are included in the cleanlines
23、s specification and in the inspection document and it is advisable that they be rigorously followed by the test staff. BS ISO 16232-5:2007blank1Road vehicles Cleanliness of components of fluid circuits Part 5: Method of extraction of contaminants on functional test bench 1 Scope This part of ISO 162
24、32 describes the principles of extraction of contaminants by test on a laboratory functional test bench with the test liquid flowing under pressure or under vacuum. It is applicable to both active and passive components through which the fluid can easily flow. Unless otherwise specified, this part o
25、f ISO 16232 deals with particulate contamination only. It does not, therefore, cover appearance defects or contamination by liquid or gaseous materials. It covers the amount and the nature of residual particles resulting from manufacturing processes and from the environment. 2 Normative references T
26、he following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 16232-1, Road vehicles Cleanliness of componen
27、ts of fluid circuits Part 1: Vocabulary ISO 16232-2, Road vehicles Cleanliness of components of fluid circuits Part 2: Method of extraction of contaminants by agitation ISO 16232-3, Road vehicles Cleanliness of components of fluid circuits Part 3: Method of extraction of contaminants pressure rinsin
28、g ISO 16232-4, Road vehicles Cleanliness of components of fluid circuits Part 4: Method of extraction of contaminants by ultrasonic techniques ISO 16232-6, Road vehicles Cleanliness of components of fluid circuits Part 6: Particle mass determination by gravimetric analysis ISO 16232-7, Road vehicles
29、 Cleanliness of components of fluid circuits Part 7: Particle sizing and counting by microscopic analysis ISO 16232-8, Road vehicles Cleanliness of components of fluid circuits Part 8: Particle nature determination by microscopic analysis ISO 16232-9, Road vehicles Cleanliness of components of fluid
30、 circuits Part 9: Particle sizing and counting by automatic light extinction particle counter ISO 16232-10:2007, Road vehicles Cleanliness of components of fluid circuits Part 10: Expression of results BS ISO 16232-5:20072 3 Terms and definitions For the purposes of this document, the terms and defi
31、nitions given in ISO 16232-1 apply. 4 Principle The component shall be installed on a validated test bench which simulates the components functional operation. The motion of the liquid under known conditions detaches the contaminants from the controlled surfaces and transfers them to the test liquid
32、, for subsequent analysis. The motion of the test liquid is achieved either by pressure or by vacuum. In the case of an active component, depending on the function principle, the component shall be actuated either by an external device or by the moving liquid. 5 Equipment 5.1 General The equipment u
33、sed shall neither alter nor modify the size distribution of the extracted particles. 5.2 Test liquid The test liquid shall be compatible with all the materials in the component, with the liquid used in the final system and with the test equipment, including seals, membrane filters and clean-up filte
34、rs. A test liquid of low viscosity (u 5 mm2/s) and having the capability of removing (or dissolving) oil and grease is recommended. It should be filtered to attain the requirements of 6.3.3. SAFETY PRECAUTIONS In case a tested component will be reclaimed for final use, application of incompatible te
35、st liquid may cause hazardous damage. 5.3 Test component container A closed container should be used for the transfer of the component from the place of sampling to the place of particle extraction. This container shall be appropriate to the shape of the component and made of material compatible wit
36、h the test liquid. Its degree of cleanliness shall comply with the blank requirements specified in 6.3.3. 5.4 Test set up Use a test set-up that enables the component to operate at its acceptable flow rate, temperature and pressure as agreed between parties and included in the inspection document. A
37、 typical test set-up schematic is shown in Annex A. In Annex A, all circuit components shown are given as examples. The extraction circuit shall be designed so as to fulfil the requirements of the extraction procedure. The design of the test set-up and the components selected are critical to the acc
38、uracy, repeatability and reproducibility of measurements, and the basic rules are: the components shall neither alter nor modify the size distribution of the particles the components shall not encourage the settlement of particles during its operation and be so designed to quickly and effectively ca
39、use the particles to be re-entrained after periods of stoppage. BS ISO 16232-5:200735.5 Pressure rinsing liquid dispenser The pressure liquid dispenser is a device that provides a clean test liquid specified in 5.2 at a pressure and flow rate capable of extracting the contaminants in an effective ma
40、nner. The dispenser can also be used to rinse the test equipment, and all other items. 5.6 Collection equipment The collection equipment shall allow effective draining of particles. A conical base is preferred. The collection equipment shall be cleaned to achieve the requirements of 6.3.3. It is pos
41、sible for contaminants remaining on the equipments to be transferred to the sample and thus be erroneously included as part of the contaminants removed from the component. All collection equipment shall be cleaned and covered before use in order to limit contamination from the environment. 5.7 Sampl
42、ing containers The sampling containers (glassware, etc.) required for transferring the extraction liquid from the collection equipment to the analysis equipments shall be cleaned to achieve the requirements of 6.3.3. 5.8 Environmental conditions The cleanliness of the environment of the place where
43、the extraction is performed shall be consistent with the presumed cleanliness of the component to test. This requirement may result in the test being carried out in a laboratory or controlled workplace. The suitability of the environment is validated when performing the blank test. 5.9 Health and sa
44、fety 5.9.1 Local Health and Safety procedures shall be followed at all times, any equipment shall be operated in accordance with the manufacturers instruction and personal protection equipment used where appropriate. 5.9.2 Chemicals used in the procedures can be harmful, toxic or flammable. Good lab
45、oratory practices shall be observed in the preparation and use of these chemicals. Care shall be taken to ensure compatibility of the chemicals with the materials used (refer to each Material Safety Data Sheet MSDS). Follow the precautions for safe handling and usage as described in the MSDS availab
46、le from the supplier. 5.9.3 Volatile liquids; care shall be taken with flammable liquids to ensure that they are used in accordance with the MSDS, at temperatures below the stated flash point and away from potential sources of ignition. Appropriate precautions should be taken to avoid inhalation of
47、fumes from these solvents. Always use suitable protective equipment. 5.9.4 Electrical; appropriate care should be applied in the use of electrical power. 5.9.5 Disposal; all liquids and substances shall be disposed of in accordance with local environmental procedures. In the event of spillage it sha
48、ll be cleaned-up in the manner detailed in the MSDS. 6 Procedure 6.1 Handling and storage 6.1.1 During handling and storage of test components, it shall be ensured that no contaminants are deposited on or removed from controlled surfaces. 6.1.2 To prevent loss of particles during transport, it may b
49、e necessary to seal openings of the test components, e.g. with suitable plugs. BS ISO 16232-5:20074 6.2 Extraction procedure set up and validation 6.2.1 The number of components to be analysed shall be chosen so as to measure a significant amount of contaminant. 6.2.2 If the break-in of the component is part of its manufacturing process, the extraction procedure should be agreed between parties and included in the inspection document because break-in may alter its init
