《BS-EN-ISO-9934-2-2002.pdf》由会员分享，可在线阅读，更多相关《BS-EN-ISO-9934-2-2002.pdf（28页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS EN ISO 9934-2:2002 Non-destructive testing Magnetic particle testing Part 2: Detection media The European Standard EN ISO 9934-2:2002 has the status of a British Standard ICS 19.100 ? BS EN ISO 9934-2:2002 This British Standard, having been prepared under the direction of the Eng
2、ineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 19 December 2002 BSI 19 December 2002 ISBN 0 580 40971 6 National foreword This British Standard is the official English language version of EN ISO 9934-2:2002. It is id
3、entical with ISO 9934-2:2002. It supersedes BS 4069:1982 and BS 5044:1973 which are withdrawn. The UK participation in its preparation was entrusted to Technical Committee WEE/46, Non-destructive testing, which has the responsibility to: A list of organizations represented on this committee can be o
4、btained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facili
5、ty of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.
6、 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; monitor related international and European developments and promulgate them in the UK. Summary of pages
7、 This document comprises a front cover, an inside front cover, the EN ISO title page, pages 2 to 24, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEA
8、N STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9934-2 December 2002 ICS 19.100 English version Non-destructive testing - Magnetic particle testing - Part 2: Detection media (ISO 9934-2:2002) Essais non destructifs - Magntoscopie - Partie 2: Produits magntoscopiques (ISO 9934-2:2002) Zerstrungsfre
9、ie Prfung - Magnetpulverprfung - Teil 2: Prfmittel (ISO 9934-2:2002) This European Standard was approved by CEN on 14 July 2002. 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 standar
10、d without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other langua
11、ge made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Icel
12、and, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2002 CENAll rights of expl
13、oitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 9934-2:2002 E EN ISO 9934-2:2002 (E) 2 Contents page Foreword3 1Scope 4 2Normative references 4 3Terms and definitions4 4Safety precautions.5 5Classification5 5.1General5 5.2Magnetic inks .5 5.3Powders
14、5 6Testing and test certificate .5 6.1Type testing and batch testing.5 6.2In service testing5 7Requirements and test methods5 7.1Performance.5 7.2Colour6 7.3Particle size 6 7.4Temperature resistance 6 7.5Fluorescent coefficient and fluorescent stability.6 7.6Fluorescence of carrier liquid.8 7.7Flash
15、 point8 7.8Corrosion induced by detection media .8 7.9Viscosity of the carrier liquid8 7.10Mechanical stability.8 7.11Foaming9 7.12pH 9 7.13Storage stability.9 7.14Solids content 9 7.15Sulphur and halogen content.9 8Testing requirements 10 9Test report 10 10Packaging and labelling10 Annex A (normati
16、ve) Procedure for type, batch and in service testing .13 Annex B (normative) Reference blocks .15 Annex C (normative) Corrosion testing of steel .20 Bibliography24 EN ISO 9934-2:2002 (E) 3 Foreword This document EN ISO 9934-2:2002 has been prepared by Technical Committee CEN/TC 138 “Non-destructive
17、testing“, the secretariat of which is held by AFNOR, in collaboration with Technical Committee ISO/TC 135 “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 2003, and
18、conflicting national standards shall be withdrawn at the latest by June 2003. Annexes A, B and C are normative This standard consists of the following parts: EN ISO 9934-1, Non-destructive testing - Magnetic particle testing - Part 1: General principle (ISO 9934-1:2001). EN ISO 9934-2, Non-destructi
19、ve testing - Magnetic particle testing - Part 2: Detection media (ISO 9934-2:2002). EN ISO 9934-3, Non-destructive testing - Magnetic particle testing - Part 3: Equipment (ISO 9934-3:2002). According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following count
20、ries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. EN ISO 9934-2:2002 (E) 4 1 Scope This Europea
21、n Standard specifies the significant properties of magnetic particle testing products (including magnetic ink, powder, carrier liquid, contrast aid paints) and the methods for checking their properties. 2 Normative references This European Standard incorporates by dated or undated reference, provisi
22、ons from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by
23、 amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 1330-1, Non destructive testing - Terminology - Part 1: List of general terms. EN 1330-2, Non destructive testing - Terminology - Part 2: Terms common to the non-destru
24、ctive testing methods. EN 10083-1, Quenched and tempered steels - Part 1: Technical delivery conditions for special steels. EN 10204, Metallic products - Types of inspection documents. EN 12157, Rotodynamic pumps - Coolant pumps units for machine tools - Nominal flow rate, dimensions. EN ISO 2160, P
25、etroleum products - Corrosiveness to copper - Copper strip test (ISO 2160:1998). EN ISO 3059, Non-destructive testing - Penetrant testing and magnetic particle testing - Viewing conditions (ISO 3059:2001). EN ISO 3104, Petroleum products - Transparent and opaque liquids - Determination of kinematic
26、viscosity and calculation of dynamic viscosity (ISO 3104:1994). EN ISO 9934-1, Non-destructive testing - Magnetic particle testing - Part 1: General principle (ISO 9934-1:2001). EN ISO 9934-3, Non-destructive testing - Magnetic particle testing - Part 3: Equipment (ISO 9934-3:2002). prEN ISO 12707,
27、Non-destructive testing - Terminology - Terms used in magnetic particle testing (ISO/DIS 12707:2000). ISO 2591-1, Test sieving - Part 1: Methods using test sieves of woven wire cloth and perforated metal plate. ISO 4316, Surface active agents - Determination of pH of aqueous solutions - Potentiometr
28、ic method. 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 1330-1, EN 1330-2 and prEN ISO 12707 together with the following apply. 3.1 batch quantity of material produced during one manufacturing operation having uniform properties throughout
29、 and with a unique identifying number or mark EN ISO 9934-2:2002 (E) 5 4 Safety precautions The materials used in magnetic particle inspection and those used in their testing include chemicals that can be harmful, flammable and/or volatile. All necessary precautions should be observed. All relevant
30、regulations, including national and local regulations pertaining to health and safety, anti-pollution requirements etc., shall be observed. 5 Classification 5.1 General The magnetic particle materials covered by this specification shall be classified as follows. 5.2 Magnetic inks Magnetic inks shall
31、 consist of finely divided coloured or fluorescent magnetic particles in a suitable carrier liquid. They shall form a uniform suspension when agitated. Magnetic inks may be produced from products supplied as concentrates, including paste and powders, or ready for use. 5.3 Powders Powders for the dry
32、 technique shall consist of finely divided coloured and/or fluorescent magnetic particles. 6 Testing and test certificate 6.1 Type testing and batch testing Type testing and batch testing of magnetic particle materials shall be carried out in accordance with the requirements of EN ISO 9934-1, EN ISO
33、 9934-2, and EN ISO 9934-3. Type testing is carried out in order to demonstrate suitability of a product for the intended use. Batch testing is carried out in order to demonstrate conformity of the characteristics of a batch to the product type specified. The supplier shall provide a test certificat
34、e showing compliance with this standard having used the methods detailed. This certificate shall include results obtained and tolerances allowed. If any changes are made to the detection media, then a new type test shall be performed. 6.2 In service testing In service testing is carried out to demon
35、strate the continued performance of the detection media. 7 Requirements and test methods 7.1 Performance 7.1.1 Type testing and batch testing Type testing and batch testing shall be carried out according to annex A using the reference blocks types 1 or 2 as described in annex B. EN ISO 9934-2:2002 (
36、E) 6 7.1.2 In service testing In service testing shall be carried out according to annex A using one of the reference blocks types 1 or 2 as described in annex B or a test block which exhibit similar discontinuities to those normally found in components typically processed in the equipment. 7.1.3 Co
37、ntrast aid paints Type testing and batch testing shall be carried out according to 7.1.1 after having applied the paint in accordance with the manufacturer instructions and using a type test approved, compatible magnetic ink. 7.2 Colour The colour of magnetic particles detection media under working
38、conditions shall be stated by the supplier. The colour of the batch test sample shall not differ from the colour of the type test sample when visually compared. 7.3 Particle size 7.3.1 Method The method for determination of particle size is dependent on the range of the particle size distribution. N
39、OTEFor magnetic inks the particle-size-distribution can be determined by the Coulter Method or an equivalent method (see Bibliography). 7.3.2 Definition of the particle size The range of particle size shall be as follows: -lower diameter dl: no more than 10 % of the particles shall be smaller than d
40、l; -average diameter da: 50 % of the particles shall be larger and 50 % smaller than da; -upper diameter du: no more than 10 % of the particles shall be larger than du. 7.3.3 Requirements dl, da and du shall be reported. For magnetic inks sizes shall lie in the range dl 1,5 m and du 40 m. 7.4 Temper
41、ature resistance There shall be no degradation of the product after 5 minutes heating at the maximum temperature specified by the supplier. This shall be verified by repeating the performance test as specified in 7.1.1. 7.5 Fluorescent coefficient and fluorescent stability To carry out these tests i
42、t is necessary to use dry powder. For magnetic inks the magnetic particle solid content shall be used. 7.5.1 Type testing 7.5.1.1 Method The fluorescent coefficient in cd/W is defined as follows: EN ISO 9934-2:2002 (E) 7 = L/Ee whereL = luminance in cd/m of a plane powder surface; Ee = level of UV-i
43、rradiance in W/m at the surface of the powder. The arrangement of the apparatus used is shown in Figure 1. The powder surface shall be evenly irradiated with UV(A) at an angle of 45 ( 5). Luminance shall be measured with a suitable meter with an accuracy of 10 %. It shall measure the luminance from
44、the powder surface and be unaffected by areas outside of the target area. The level of irradiance shall be measured with a meter conforming to EN ISO 3059 with its UV sensor replacing the powder surface. Key 1Measurement of luminance 2Lamp 3UV radiation 4Measurement point of the irradiance 5Powder s
45、urface Figure 1 - Determination of the fluorescent coefficient for magnetic particles NOTEA recommended arrangement is using a luminance meter with a 200 cd/m range and a viewing angle () of 20 placed 80 mm above the plane powder surface, diameter 40 mm. UV (A) lamps are placed so as to give an even
46、 irradiance at the powder surface, with Ee between 10 W/m and 15 W/m. 7.5.1.2 Requirements The fluorescent coefficient () shall be greater than 1,5 cd/W. 7.5.1.3 Fluorescence stability The sample shall first be tested according to the method described in 7.5.1.1. EN ISO 9934-2:2002 (E) 8 The sample
47、shall then be exposed and re-tested as described in 7.5.1.1 after 30 minutes of exposure to UV-A irradiance of 20 W/m (minimum). The fluorescent coefficient shall not decrease more than 5 %. 7.5.2 Batch testing Batch testing shall be carried out according to 7.5.1.1. The fluorescent coefficient shal
48、l be within 10 % of the type test value. 7.6 Fluorescence of carrier liquid The fluorescence of the carrier liquid shall be checked by visually comparing with quinine sulphate solution when irradiated with UV-A of at least 10 W/m. The concentration of the quinine sulphate solution shall be 7 10-9 M
49、(5,5 ppm) in 0,1 N H2SO4. The carrier liquid under test shall exhibit no more fluorescence than the quinine sulphate solution. 7.7 Flash point For magnetic inks, other than water based, the flash point (open cup method) of the carrier fluid shall be reported. 7.8 Corrosion induced by detection media 7.8.1 Corrosion testing on steel The corrosive effect on steel shall be tested and reported according to annex C. 7.8.2 Corrosion testing of copper The corrosive effect on copp