1、STD-BSI BS EN IS0 3V52-q-ENGL L791 Lb2LibbS 075Vbll 938 BRITISH STANDARD Non-destructive testing - Penetrant testing - Part 4: Equipment The European Standar EN IS0 34524998 has the status of a British Stanhd ICs 19.100 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN IS0
2、 34524.1999 STD-BSI BS EN IS0 3q52-4-ENGL 1999 m lbZqbb9 075Lib5 87q been prepared under the direction of the Engineering Amd. No. Date Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 March 1999 Q BSI 03-1999 ISBN O 580 29986 4 BS EN IS0 346
3、2A1999 Text affected National foreword This British Standard is the English hguage veision of EN IS0 34524.1998. It is identical with IS0 34524: 19%. The UK participation in its prepdon was entrusted to Technicai Committee WEW46, Nondestructive testing, which has the responsibility to: - aid enquire
4、rs to understand the text; - present to the responsible intedoxdEumpean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests - monitor related international and European developments and promulgate informed; them in the UK A list of organizations represen
5、ted 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 lists nonnative references to international pubhations with their corresponding European publications. The British Standar
6、ds which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “IntedonaJ Stan- Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Caalogue. A British Standard does not purport to include al t
7、he necessary provisions of a contrad. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an Wide front cover, the EN title page
8、, pages 2 to 9 and a back cover. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 34524 December 1998 ICs Descriptors: non-destructive tests, liquid penetrant tests, test equipment English version Non-destructive testing - Penetrant testing - Part 4: Equipment (IS0 3452-411 998) Essais non d
9、estructifs - Examen par ressuage - Partie 4: Equipement (IS0 3452-4:1998) Zestningsfreie Prfung - Eindringprfung - Teil 4: Gerte (IS0 3452-4: 1 998) This European Standard was approved by CEN on 1 May 1998. CEN members are bound to comply with the CEWCENELEC Intemal Regulations which stipulate the c
10、onditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists 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 th
11、ree official versions (English, French, German). A version in any other language made by translation under the responsibility 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 A
12、ustria. Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland. Ireland. Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMlTE EUROPEEN DE NORMALISATION EUROPAISCHES KOMITEE FR NORMUNG Centr
13、al Secretariat: rue de Stassart, 36 51050 Brussels Q 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN IS0 3452-4:1998 E STD.BS1 BS EN IS0 3452-4-ENGL 1777 Lb24bb7 0754b87 b47 Paga 2 EN IS0 345241998 Contents Foreword Introducti
14、on 1 Scope 2 Normative references 3 General 4 Equipment for in situ inspection 5 Equiment for fixed installations Annex ZA (no-ave) Nonnative references to intemational publications with their relevant European publications Page 3 4 5 5 5 5 6 9 STD-BSI BS EN IS0 3g52-g-ENGL 1797 = 1624bb9 0754b88 58
15、3 Page 3 EN IS0 345241998 Foreword The text of EN IS0 345241998 has been prepared by Technical Committee CEWC 138 “Nondestructive testing“, the secretariat of which is held by AFNOR, in collaboration with Technical Committee ISOTTC 135 “Nondestructive testing. This European Standard shall be given t
16、he 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 European Standard has been prepared under a mandate given to CEN by the European Commissi
17、on 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 New Approach Directive and which make reference to this European Standard. Accordin
18、g to the CEWCENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Sp
19、ain, Sweden, Switzerland and the United Kingdom. STD.BS1 BS EN IS0 3Y52-q-ENGL 1999 LbZLibbS 0754bA9 YLT Title Page 4 EN IS0 3452-4: 1998 previous number* I official number Introduction At the present time, one pati of this Standard is published independently on the European and IS0 levels, the othe
20、rs are under the Vienna Agreement and consequently have the IS0 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 di
21、fferent numbers. Part 1: General principle EN 571-1 Part 2: Testing of penetrant rnate- rials prEN 571-2 prEN IS0 3452-2 Part 3: Reference test blocks PEN 571-3 EN IS0 3452-3 Part 4: Equipment prEN 956 EN IS0 3452-4 number under which this document is referenced in some European Standards Y Page 5 E
22、N IS0 345241998 1 scope This European 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 equi
23、pment are included in his standard: 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
24、at the appropriate places in the text 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 t
25、he publication referred to applies. EN 571-1 Non destructive testing - Penetrant testing - Part 1: General principles for the examination prEN IS0 3452-2 Non-destructive testin - Penetrant testing - Part 2: Testing of penetrant materials (ISO/DIS 3452-2:1994 EN IS0 3452-3 prEN IS0 3059 Non-destructi
26、ve testing - Penetrant testing - Part 3: Reference blocks (IS0 3452-3:1998) Nomdestructive 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: - equipmen
27、t should be selected being suitable for the penetrant testing technique; - all relevant health, safely and environmental requirements shall be complied with;. - the application shall be in accordance with the requirements of EN 571-1. 4 Equipment for in situ inspection The equipment used for in situ
28、 inspection shall fullfill the requirements of EN 571-1, prEN IC0 3452-2 and EN IS0 3452-3. 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) sourc
29、e. 5 Equipment for fixed installations 5.1 General requirements All materials of construction used for the manufaure 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 the
30、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 overhea
31、d 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 discharg
32、e requirements. In addition the recycled water shall be of a quality suitable for rinsing components. STD-BSI BS EN IS0 3452-Y-ENGL 1797 Lb24bb 0754b7L O78 Page 6 EN IC0 3452-4: 1998 Where extraction systems are fitted, e. g. with spray application of penetrant, they shall be designed such that the
33、local health and safety requirements relevant to operational safely and local air 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
34、equipment shall be used to carry out the preparation and precleaning requirements described in EN 571-1. Degreasing areas shall be equipped to ensure degreasing of the components in accordance with preparation and precleaning requirements described in EN 571-1 and if necessary shall include an area
35、for cooling the components prior to the application of penetrant. The degreasing and cooling facilities shall be of adequate size to handle the flow of components. Vapour degreasers using halogenated hydrocarbons shall meet relevant air pollution require- ments. 5.3 Penetrant application area Penetr
36、ant application areas shall ha,ve the facilities for applying penetrant by air assisted, 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 t
37、ray. Where fluorescent penetrants are applied by manual spraying equipment, a source of UV-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 drai
38、n stations shall consist of a tray having a sloping base, arranged so that the penetrant 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 c
39、omponents to be tested. The tank may be equipped with a tank for the overflow of a part of the contaminated water. The tank shall be equipped with means for controlling the water temperature. 5.5.2 Spray-wash areas Spray-wash stations shall compnce either manual or automatic spraying equipment. Manu
40、al spraying equipment shall be equipped with a water or airhater spray gun capable of delivering a suitable spray at a pressure as low as possible and at a temperature not exceeding 50 “C. The pressure shall be measured as near as practicably possible to the spray nozzle without a valve between the
41、meter and the nozzle. Where manual spraying equipment is employed. 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
42、for manual equipment. In addition the number, design and location 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.
43、 5.5.3 Emulsifier area Emulsifier stations shall comprise the equipment given in (a) and (b), as appropriate to the process used. a) Where a hydrophilic ernulsifier is to te applied by an immersion technique the station shall comprise a tani suitable to allow components to be immersed completely in
44、the solution for a controlled time. Page 7 EN IS0 345241996 Hydrophilic emulsifier may also be applied using suitable equipment by foam or flow-on technique. b) A lipophilic emulsifier shall be applied by immersion only. The siation shall comprise a tank which will allow complete immersion of compon
45、ents in a solution for a controlled time. This shall be followed by drainage. 5.6 Drying 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 (maximum 80 OC)
46、 recirculating oven shall be used. To avoid condensation or oxidation of metals and to ensure 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 Develo
47、per stations shall comprise the equipment given in 5.7a) to d) as appropriate to the developer 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) insuff lator
48、6) fluidized bed. The equipment shall be constructed such that an even thin coating of the developer powder is applied to all suriaces. 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 bask
49、ets. It shall have a sealed, hinged lid and be fitted with heaters to prevent contamination 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 temp
