BS EN ISO 3452-4-1999 Non-destructive testing - Penetrant testing - Equipment《无损检验 渗透检验 设备》.pdf

1、BRITISH STANDARD BS EN ISO 3452-4:1999 Non-destructive testingPenetrant testing Part4: Equipment The European Standard EN ISO3452-4:1998 has the status of a BritishStandard ICS19.100BSEN ISO 3452-4:1999 This British Standard, having been prepared under the directionof the Engineering SectorCommittee

2、, was publishedunder the authority ofthe Standards Committee andcomes into effect on 15 March 1999 BSI 04-1999 ISBN 0 580 29986 4 National foreword This British Standard is the English language version of EN ISO3452-4:1998. It is identical with ISO3452-4:1998. The UK participation in its preparation

3、 was entrusted to Technical Committee WEE/46, Non-destructive testing, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed;

4、monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC standards normally include an annex which lis

5、ts normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Inde

6、x”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself co

7、nfer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN ISO title page, pages2 to7 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated

8、 in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSENISO3452-4:1999 BSI 04-1999 i Contents Page National foreword Inside front cover Foreword 2 Text of EN ISO3452-4 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO3452-4 Dec

9、ember 1998 ICS Descriptors: Non-destructive tests, liquid penetrant tests, test equipment English version Non-destructive testing Penetrant testing Part4:Equipment (ISO3452-4:1998) Essais non destructifs Examen par ressuage Partie4: Equipement (ISO3452-4:1998) Zerstrungsfreie Prfung Eindringprfung T

10、eil4: Gerte (ISO3452-4:1998) This European Standard was approved by CEN on 1 May 1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists

11、 and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the respons

12、ibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Nether

13、lands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means r

14、eservedworldwide for CEN national Members. Ref. No. EN ISO3452-4:1998 EEN ISO 3452-4:1998 BSI 04-1999 2 Foreword The text of EN ISO3452-4:1998 has been prepared by Technical Committee CEN/TC138 “Non-destructive testing”, the secretariat of which is held by AFNOR, in collaboration with Technical Comm

15、ittee ISO/TC135 “Non-destructive testing”. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 1999, and conflicting national standards shall be withdrawn at the latest by June 1999. This Europea

16、n Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. This European Standard is considered to be a supporting standard to those application and product standards which in themselves support an essential safety requirement of a N

17、ew Approach Directive and which make reference to this European Standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germ

18、any, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 Introduction 3 1 Scope 3 2 Normative references 3 3 General 3 4 Equipment for in situ inspection 4 5 Equiment for fixed installations 4 Annex Z

19、A (normative) Normative references tointernational publications with their relevantEuropean publications 7ENISO3452-4:1998 BSI 04-1999 3 Introduction At the present time, one part of this Standard is published independently on the European and ISO levels, the others are under the Vienna Agreement an

20、d consequently have the ISO number at the European level. However, the Vienna agreement was applied during the work, so some European Standards have referenced them under their previous European number. The following table gives the correspondance between these different numbers. 1 Scope This Europe

21、an standard specifies the characteristics of equipment used in penetrant testing. The characteristics of equipment required for carrying out penetrant testing depend on the number of tests to be made and on the size of the components to be tested. Two types of equipment are included in this standard

22、: a) equipment suitable for carrying out in situ penetrant testing techniques; b) fixed installations. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the t

23、ext and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies

24、. EN571-1, Non destructive testing Penetrant testing Part1: General principles for the examination. prEN ISO3452-2, Non-destructive testing Penetrant testing Part2: Testing of penetrant materials (ISO/DIS3452-2:1996). EN ISO3452-3, Non-destructive testing Penetrant testing Part3: Reference blocks (I

25、SO3452-3:1998). prEN ISO3059, Non-destructive testing Penetrant testing and magnetic particle testing Viewing conditions. 3 General Equipment used in penetrant testing shall be selected and applied considering the following general aspects: equipment should be selected being suitable for the penetra

26、nt testing technique; all relevant health, safety and environmental requirements shall be complied with;. the application shall be in accordance with the requirements of EN571-1. Title previous number a official number Non-destructive testing Penetrant testing Part1: General principle EN571-1 Part2:

27、 Testing of penetrant materials prEN571-2 prEN ISO3452-2 Part3: Reference test blocks prEN571-3 EN ISO3452-3 Part4: Equipment prEN956 EN ISO3452-4 a number under which this document is referenced in some European StandardsENISO 3452-4:1998 4 BSI 04-1999 4 Equipment for in situ inspection The equipme

28、nt used for in situ inspection shall fullfill the requirements of EN571-1, prENISO3452-2 and EN ISO3452-3. Depending on the process being employed the following testing equipment may be used: portable spray equipment cloth (lint free) brushes personal protective equipment white light source UV(A) so

29、urce. 5 Equipment for fixed installations 5.1 General requirements All materials of construction used for the manufacture of fixed penetrant inspection installations, e.g.tanks, pipework and ducting, shall be manufactured from materials which are resistant to attack by the products used throughout t

30、he complete process. In addition, these materials shall not cause any modification to the properties of the penetrant systems used. Penetrant installations shall be located in an area where there is no possibility of contamination of the working solutions from external sources, e.g.leaks from overhe

31、ad steam pipes. In addition penetrant tanks should be fitted with lids which should be kept shut when the plant is not in use. Where plants are fitted with effluent treatment or water recirculating systems, the system shall be designed to ensure that any water discharged to waste meets local dischar

32、ge requirements. In addition the recycled water shall be of a quality suitable for rinsing components. Where extraction systems are fitted, e.g.with spray application of penetrant, they shall be designed such that the local health and safety requirements relevant to operational safety and local air

33、emission laws are fully met. All chemicals used in penetrant testing shall be stored in closed containers and storage shall meet relevant health and safety requirements. 5.2 Preparation and precleaning area Suitable equipment shall be used to carry out the preparation and precleaning requirements de

34、scribed in EN571-1. Degreasing areas shall be equipped to ensure degreasing of the components in accordance with preparation and precleaning requirements described in EN571-1 and if necessary shall include an area for cooling the components prior to the application of penetrant. The degreasing and c

35、ooling facilities shall be of adequate size to handle the flow of components. Vapour degreasers using halogenated hydrocarbons shall meet relevant air pollution requirements. 5.3 Penetrant application area Penetrant application areas shall have the facilities for applying penetrant by air assisted,

36、airless and/or electrostatic spraying, spray cans, brushing, flow-on techniques or immersion in a tank of penetrant liquid. The tanks used for all processed chemicals shall be installed with a proper retaining tray. Where fluorescent penetrants are applied by manual spraying equipment, a source of U

37、V-A should be provided for checking the surface to be tested for penetrant coverage. Where spray application is employed, suitable extraction facilities shall be provided. 5.4 Penetrant drain area Penetrant drain stations shall consist of a tray having a sloping base, arranged so that the penetrant

38、is collected in a separate container of the tank containing the penetrant. 5.5 Excess penetrant removal area 5.5.1 Immersion wash tank Immersion tanks shall comprise means for agitating the water or moving the components to be tested. The tank may be equipped with a tank for the overflow of a part o

39、f the contaminated water. The tank shall be equipped with means for controlling the water temperature.ENISO3452-4:1998 BSI 04-1999 5 5.5.2 Spray-wash areas Spray-wash stations shall comprise either manual or automatic spraying equipment. Manual spraying equipment shall be equipped with a water or ai

40、r/water spray gun capable of delivering a suitable spray at a pressure as low as possible and at a temperature not exceeding50 C. The pressure shall be measured as near as practicably possible to the spray nozzle without a valve between the meter and the nozzle. Where manual spraying equipment is em

41、ployed, a suitable source of illumination shall be provided to control the excess penetrant removal either white light for colour contrast penetrant or UV-A for fluorescent penetrant. Automatic spraying equipment shall meet the requirements for manual equipment. In addition the number, design and lo

42、cation of the nozzles shall be such that all test surfaces of the components are evenly rinsed. A suitable drain shall be provided where automatic spraying equipment is employed. Water retained in recesses shall be removed by suitable means. 5.5.3 Emulsifier area Emulsifier stations shall comprise t

43、he equipment given ina) andb), as appropriate to the process used. a) Where a hydrophilic emulsifier is to be applied by an immersion technique the station shall comprise a tank suitable to allow components to be immersed completely in the solution for a controlled time. Hydrophilic emulsifier may a

44、lso be applied using suitable equipment by foam or flow-on technique. b) A lipophilic emulsifier shall be applied by immersion only. The station shall comprise a tank which will allow complete immersion of components in a solution for a controlled time. This shall be followed by drainage. 5.6 Drying

45、 area If entrapped water is to be removed, appropriate equipment shall be used such as a suction system or means of rotating parts. To remove surface water appropriate equipment such as a warm air (maximum80 C) recirculating oven shall be used. To avoid condensation or oxidation of metals and to ens

46、ure that components are properly dried, a forced air oven shall be used to ensure that there is a uniform controlled temperature distribution together with a high air flow. 5.7 Developer application area Developer stations shall comprise the equipment given in5.7 a) tod) as appropriate to the develo

47、per used. a) Powder developer. The station shall comprise equipment for applying the developer by one of the following: 1) dust storm cabinet 2) electrostatic spray gun 3) flock gun 4) tumbler 5) insufflator 6) fluidized bed. The equipment shall be constructed such that an even thin coating of the d

48、eveloper powder is applied to all surfaces. Where a cabinet is used, it shall be of sufficient size to accommodate all the work pieces examined, either as single components or as multiples placed in wire baskets. It shall have a sealed, hinged lid and be fitted with heaters to prevent contamination

49、of the powder by moisture. Where an electrostatic spray or a flock gun is used, suitable means of extraction shall be provided. b) Water suspension developer. The station shall comprise a tank which shall be fitted with a lid and shall be of such a size that total immersion of components can be achieved. It shall have facilities for continuous agitation of the developer either by clean air or by mechanical means, and shall be capable of maintaining the developer at the temperature recommended by the manufacturer a