1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58circuits Part 1: VocabularyICS 01.040.43; 13.040.50; 43.180Road vehicles Cleanliness of components
2、of fluid BRITISH STANDARDBS ISO 16232-1:2007BS ISO 16232-1:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 June 2007 BSI 2007ISBN 978 0 580 50928 5Amendments issued since publicationAmd. No. Date Commentscontract. Users are responsible
3、 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 16232-1:2007.The UK participation in its preparation was entrusted to Technical Committee MCE
4、/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 16232-1:2007(E)INTERNATIONAL STANDARD ISO16232-1First edition2007-06-01R
5、oad vehicles Cleanliness of components of fluid circuits Part 1: Vocabulary Vhicules routiers Propret des composants des circuits de fluide Partie 1: Vocabulaire BS ISO 16232-1:2007ii iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Symb
6、ols and abreviations . 11 BS ISO 16232-1:2007iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each m
7、ember 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 part in the work. ISO collaborates closely with the International
8、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 to prepare International Standards. Draft International Standards a
9、dopted 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 that some of the elements of this document may be the subject of p
10、atent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 16232-1 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 5, Engine tests. ISO 16232 consists of the following parts, under the general title Road vehicles Cleanliness of co
11、mponents 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 techniques Part 5: Method of extraction of contaminants on functional t
12、est 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 automatic light extinction particle counter Part 10: Expression of
13、results BS ISO 16232-1:2007vIntroduction The presence of particulate contamination in a fluid system is acknowledged to be a major factor governing the life and reliability of that system. The presence of particles residual from the manufacturing and assembly processes will cause a substantial incre
14、ase 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 introduced during the build phase is necessary, and measurement of particul
15、ate 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 to the presence of a single or a few critically sized particles. C
16、onsequently, 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 such as those developed by ISO/TC131/SC6. These International Stand
17、ards 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. BS ISO 16232-1:2007blank1Road vehicles Cleanliness of components of
18、 fluid circuits Part 1: Vocabulary 1 Scope This part of ISO 16232 defines the vocabulary used in the characterization and measurement of particulate contamination of parts, components, sub-assemblies and assemblies constituting the fluid circuits of internal combustion engines of road vehicles. This
19、 applies to all components that may come into contact with a liquid (e.g. oil, fuel, air conditioning refrigerant, coolant), a solid lubricant or a gas (intake air). Unless otherwise specified, this International Standard deals with particulate cleanliness only. It does not therefore cover appearanc
20、e defects or contamination by liquid or gas materials. It covers the amount and the nature of residual particulate contaminants resulting from the whole manufacturing processes and from the environment. NOTE This part of ISO 16232 also covers vocabulary that will not be applied in parts 2 to 10 of I
21、SO 16232. This is in order to complement unified usage of wording in the field of cleanliness of road vehicle components. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undate
22、d references, the latest edition of the referenced document (including any amendments) applies. ISO 14644-1:1999, Cleanrooms and associated controlled environments Part 1: Classification of air cleanliness ISO/TS 16949:2002, Quality management systems Particular requirements for the application of I
23、SO 9001:2000 for automotive production and relevant service part organizations 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 abrasive particle particle liable to change the surface finish 3.2 active component component which may set the flu
24、id in motion or be activated by the fluid during operation, for example pump, cylinder, distributor, injector, valve regulator BS ISO 16232-1:20072 3.3 agitation continuous and/or irregular movement of a component 3.4 agglomerate two or more particles which are in intimate contact and cannot be sepa
25、rated by gentle stirring and the small shear forces thus generated 3.5 ambient contamination contaminants that are found in the atmosphere surrounding the component NOTE In an industrial setting, they originate from the atmosphere itself (e.g. atmospheric dust, ventilation), from operators (textile
26、fibres, etc.) from transformation operations (grinding, welding, etc.) or from objects in contact with the component (working surfaces, containers, etc.). 3.6 Automatic Particle Counter automatic light extinction particle counter APC counter that works on the light extinction principle 3.7 back scat
27、tered electron detector BSE detector supply Scanning Electron Microscope (SEM) images with a high material contrast, used for the detection of particles on a membrane filter 3.8 blank test analysis carried out with the same operating conditions as on the test component but without the component NOTE
28、 The blank test enables quantification of the contamination brought in from the environment, processes and materials used. 3.9 clean state of cleanliness of a component or a fluid that meets the specified cleanliness level that is to say with a measured cleanliness level (CLm) lower than or equal to
29、 the specified cleanliness level (CLs) 3.10 cleaning industrial process for the reduction of the quantity of contaminants present in a fluid, in or on a component until the specified cleanliness level (CLs) has been reached 3.11 cleaning curve progress curve of the cleanliness level of a fluid or co
30、mponent subject to cleaning NOTE This definition relates to industrial process which can use gas or liquid. 3.12 cleanliness condition of a product, surface, device, gas, liquid, etc., characterized by the absence of particulate contamination BS ISO 16232-1:200733.13 cleanliness audit methodical and
31、 independent examination with the view of determining whether the manufacturing process of a product and all the relevant activities provide the assurance that the cleanliness level shall be effectively obtained and/or maintained 3.14 Component Cleanliness Code CCC alpha-numeric expression of the cl
32、eanliness level (CL) of a component measured or specified by the particle size distribution of the contaminants 3.15 cleanliness inspection range of operations aimed at bringing as many contaminants as possible from a component to a measuring equipment for their analysis or quantification NOTE It us
33、ually includes three steps: collection/conditioning of the component, extraction and analysis of the contaminants. 3.16 cleanliness inspection equipment all equipment and products used to extract, collect and analyse the contaminants in order to determine the cleanliness level 3.17 cleanliness level
34、 CL amount and/or nature of contaminant present on the controlled surfaces and/or in controlled volumes of a component See Clause 4. NOTE The term may apply to the presumed, specified or measured extent of contamination. 3.18 cleanliness specification document that specifies the cleanliness level re
35、quired (CLs) for a given component along with the agreed inspection method 3.19 clean room room whose ambient particulate contamination level does not have negative effect on the cleanliness measurements 3.20 cleanroom room in which the concentration of airborne particles is controlled, and which is
36、 constructed and used in a manner to minimize the introduction, generation, and retention of particles inside the room, and in which other relevant parameters e.g. temperature, humidity, and pressure, are controlled as necessary ISO 14644-1:1999 NOTE Used only to show the difference between clean ro
37、om as defined in 3.19. 3.21 clean sampling container sampling device cleaned and conditioned according to an appropriate and validated method BS ISO 16232-1:20074 3.22 coincidence presence of more than one particle in the sensing volume of an APC at the same time 3.23 collection equipment any device
38、 (e.g. conical flask, beaker, tray, funnel, collection area of the spraying chamber) with a size and a shape suited to the collection of all the extraction liquid draining from the test component 3.24 component general term used to cover a part, a sub-assembly, a part assembly or a system fitted to
39、a road vehicle 3.25 cleaning liquid liquid compatible with the extraction sample used for conditioning of the analysis equipment and/or monitoring of the blank value of the analysis set-up 3.26 container any device, the characteristics of which allow the test component to be handled and transported
40、from a location (e.g. the production line) to the test location and/or to handle liquids during the test 3.27 contaminant undesirable substance which is in suspension in a fluid or in or on a component NOTE In ISO 16232, contaminant are particles as defined in 3.56. 3.28 contamination all contaminan
41、ts in a fluid, system or on a component 3.29 controlled surface area surface of a component subjected to cleanliness requirement and/or the subject of a cleanliness inspection NOTE The controlled surface area may differ from the wetted surface area defined in 3.79. 3.30 controlled volume volume of a
42、 component subjected to a cleanliness requirement and/or the subject of a cleanliness inspection or measurement NOTE The controlled volume may differ from the wetted volume defined in 3.80. 3.31 delay time period of time between two data acquisition intervals during which the APC will not record the
43、 particles passing through the sensor 3.32 detachable burr burr which may become detached in specified conditions 3.33 determination of cleanliness measurement of the particulate contamination (preferred term: cleanliness inspection) BS ISO 16232-1:200753.34 dynamic size range size range between the
44、 smallest detectable particle and the largest detectable particle 3.35 end-point sample last sample in a series of repetitive samples producing a result that in less than 10 % of all the samples 3.36 energy dispersive system EDX system X-ray detection system with which energy dispersive X-ray spectr
45、a are recorded for element analysis 3.37 extraction operation required to transfer as many as possible of the contaminants present in a controlled volume or on the controlled surface of a component into a known volume of test liquid for a subsequent analysis See extraction liquid (3.39). 3.38 extrac
46、tion curve progress curve of the cleanliness level of an extraction liquid applied to the test component in relation to extraction time or volume of test liquid passed through or over the test component (see Figure 1), depending on the type of liquid and test conditions (e.g. flowrate, pressure) Key
47、 1 measured cleanliness level (CLm) 2 extraction samples 3 blank level Figure 1 Extraction curve BS ISO 16232-1:20076 3.39 extraction liquid test liquid once loaded by contaminants extracted from the test component 3.40 extraction procedure method defining all the necessary parameters to transfer co
48、ntaminants from either the controlled surface or the control volume of a component into the test liquid, making the operation reproducible 3.41 extraction sample test sample total amount of liquid to be analysed present in one or a number of sample containers carrying the contaminants extracted from
49、 a component 3.42 extraction volume total volume of liquid used to extract the contaminants from a component 3.43 fibre long particle with a large length/diameter ratio, for example 30 NOTE 1 Fibres can be of different nature and shape. NOTE 2 Criteria for defining fibres should be established depending on the specific cleanliness requirement of the component analysed. Fibres cannot be defined, as such, by APC (automatic particle counters). 3.44 generated contamination all contaminants generated by the system
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