DIN EN ISO 19232-1-2013 Non-destructive testing - Image quality of radiographs - Part 1 Determination of the image quality value using wire-type image quality indicators (ISO 19232.pdf

1、December 2013 Translation by DIN-Sprachendienst.English price group 9No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC

2、S 19.100!%*Fj“2073571www.din.deDDIN EN ISO 19232-1Non-destructive testing Image quality of radiographs Part 1: Determination of the image quality value using wire-type imagequality indicators (ISO 19232-1:2013);English version EN ISO 19232-1:2013,English translation of DIN EN ISO 19232-1:2013-12Zers

3、trungsfreie Prfung Bildgte von Durchstrahlungsaufnahmen Teil 1: Ermittlung der Bildgtezahl mit Draht-Typ-Bildgteprfkrper (ISO 19232-1:2013);Englische Fassung EN ISO 19232-1:2013,Englische bersetzung von DIN EN ISO 19232-1:2013-12Essais non destructifs Qualit dimage des radiogrammes Partie 1: Dtermin

4、ation de lindice de qualit dimage laide dindicateurs fils(ISO 19232-1:2013);Version anglaise EN ISO 19232-1:2013,Traduction anglaise de DIN EN ISO 19232-1:2013-12SupersedesDIN EN 462-1:1994-03www.beuth.deDocument comprises 14 pagesIn case of doubt, the German-language original shall be considered au

5、thoritative.11.13 DIN EN ISO 19232-1:2013-12 2 A comma is used as the decimal marker. National foreword This document (EN ISO 19232-1:2013) has been prepared by Technical Committee ISO/TC 135 “Non-destructive testing”; Subcommittee SC 5 “Radiation methods” (Secretariat: DIN, Germany) in collaboratio

6、n with Technical Committee CEN/TC 138 “Non-destructive testing” (Secretariat: AFNOR). The responsible German body involved in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committee), Working Committee NA 062-08-22 AA Durchstrahlungsprfung und Strahlenschutz. DI

7、N EN ISO 19232 consists of the following parts under the general title Non-destructive testing Image quality of radiographs: Part 1: Determination of the image quality value using wire-type image quality indicators Part 2: Determination of the image quality value using step/hole-type image quality i

8、ndicators Part 3: Image quality classes Part 4: Experimental evaluation of image quality values and image quality tables Part 5: Determination of the image unsharpness value using duplex wire-type image quality indicators The DIN Standards corresponding to the International Standards referred to in

9、this document are as follows: ISO 5580 DIN EN 25580 ISO 19232-4 DIN EN ISO 19232-4 Amendments This standard differs from DIN EN 462-1:1994-03 as follows: a) the content of DIN EN 462-1:1994-03 has been adopted with minor technical changes; b) the marking applied on the IQI has been changed to ISO le

10、tters; c) the text of the standard has been editorially revised. Previous editions DIN 1914: 1935-08 DIN 54110: 1953-01, 1954-04 DIN 54109-1: 1964-10, 1976-05, 1987-10 DIN EN 462-1: 1994-03 DIN EN ISO 19232-1:2013-12 3 National Annex NA (informative) Bibliography DIN EN 25580, Non-destructive testin

11、g Industrial radiographic illuminators Minimum requirements DIN EN ISO 19232-4, Non-destructive testing Image quality of radiographs Part 4: Experimental evaluation of image quality values and image quality tables DIN EN ISO 19232-1:2013-12 4 This page is intentionally blank EUROPEAN STANDARD NORME

12、EUROPENNE EUROPISCHE NORM EN ISO 19232-1 June 2013 ICS 19.100 Supersedes EN 462-1:1994 English Version Non-destructive testing Image quality of radiographs Part 1: Determination of the image quality value using wire-type image quality indicators (ISO 19232-1:2013) Essais non destructifs Qualit dimag

13、e des radiogrammes Partie 1: Dtermination de lindice de qualit dimage laide dindicateurs fils (ISO 19232-1:2013) Zerstrungsfreie Prfung Bildgte von Durchstrahlungsaufnahmen Teil 1: Ermittlung der Bildgtezahl mit Draht-Typ-Bildgteprfkrper (ISO 19232-1:2013) This European Standard was approved by CEN

14、on 15 May 2013. 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 and bibliographical references concerning such national standards may

15、be obtained on application to the CEN-CENELEC Management Centre 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 responsibility of a CEN member into its own language and notified to

16、 the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland,

17、Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Ave

18、nue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 19232-1:2013: E Contents PageForeword . 31 Scope . 42 Normative references 43 Terms and definitions . 44 Specification for wire-type image qual

19、ity indicators . 44.1 Dimensions, designation 44.2 Material . 54.3 Marking of IQI 54.4 Declaration of conformity 65 Use of image quality indicators . 75.1 Selection 75.2 Arrangement . 76 Determination of image quality value . 7Annex A (informative) Guidance for conversion of the ASTM E747-042standar

20、d wire identities 9Bibliography .10DIN EN ISO 19232-1:2013-12 EN ISO 19232-1 23 Foreword This document (EN ISO 19232-1:2013) has been prepared by Technical Committee ISO/TC 135“Non-destructive testing”in collaboration with Technical Committee CEN/TC 138 “Non-destructive testing” the secretariat of w

21、hich is held by AFNOR. 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 December 2013, and conflicting national standards shall be withdrawn at the latest by December 2013. Attention is drawn to th

22、e possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 462-1:1994. This second edition cancels and replaces the first edition (ISO 19232-

23、1:2004), of which it constitutes a minor revision with the following changes: null update of references and definitions; null statement that EN wire IQIs of EN 462-1:19941 and its designation are identical with ISO wire IQIs null and its designation, as defined in this part of ISO 19232; null replac

24、ement of film by detector, which includes film and digital detectors; null addition of a new Annex for conversion of ASTM wire IQI identities to ISO wire IQI numbers. It also incorporates the Technical Corrigendum, ISO 19232-1:2004/Cor. 1:2007. ISO 19232 consists of the following parts under the gen

25、eral title Non-destructive testing Image quality of radiographs: null Part 1: Determination of the image quality value using wire-type image quality indicators null Part 2: Determination of the image quality value using step/hole-type image quality indicators null Part 3: Image quality classes null

26、Part 4: Experimental evaluation of image quality values and image quality tables null Part 5: Determination of the image unsharpness value using duplex wire-type image quality indicators According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countrie

27、s are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland

28、, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 19232-1:2013 has been approved by CEN as EN ISO 19232-1:2013 without any modification. DIN EN ISO 19232-1:2013-12 EN ISO 19232-1 1 ScopeThis part of ISO 19232 specif

29、ies a device and a method for the determination of the image quality of radiographs using wire-type image quality indicators.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references

30、, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 5580, Non-destructive testing Industrial radiographic illuminators Minimum requirementsISO/IEC 17050-1, Conformity assessment Suppliers declaration of confor

31、mity Part 1: General requirementsISO 19232-4, Non-destructive testing Image quality of radiographs Part 4: Experimental evaluation of image quality values and image quality tables3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1image qualitychara

32、cteristic of a radiographic image which determines the degree of detail it shows3.2image quality indicatorIQIdevice comprising a series of elements of graded dimensions which enable a measure of the image quality to be obtainedNote 1 to entry: The elements of IQI are commonly wires or steps with hol

33、es.3.3image quality valuemeasure of the image quality required or achieved and is equal to the thinnest element which can be detected on the radiographNote 1 to entry: For wire-type IQIs, the element numbers are given in Table 1.4 Specification for wire-type image quality indicators4.1 Dimensions, d

34、esignationFigure 1 represents a wire-type image quality indicator.DIN EN ISO 19232-1:2013-12 EN ISO 19232-1 4Dimensions in millimetresKeyl lengths of the wiress wire centreline spacingaSpace for identification marking.Figure 1 Image quality indicator (wire-type)The IQI system is based on a series of

35、 19 wires of different diameters which are specified in Table 1 together with the relevant tolerances and the wire numbers. This series of wires has been subdivided into four overlapping ranges of seven consecutive wire numbers, viz. W 1 to W 7, W 6 to W 12, W 10 to W 16, and W 13 to W 19. The seven

36、 wires in an IQI are arranged parallel to each other. The length of the wires, l, is 10 mm, 25 mm or 50 mm.The written designation of an image quality indicator shall be labelled with the letters IQI, the number of this part of ISO 19232, the wire number of the thickest wire as specified in Table 1

37、(e.g. W 10), the symbol denoting the wire material (e.g. FE), and the length (e.g. 25):EXAMPLE 1 IQI ISO 19232-1 - W 10 FE-25IQIs with the designation EN 462-11are considered to be identical to IQIs with the designation ISO 19232-1.NOTE Annex A gives a table for conversion of ASTM E747-042wire ident

38、ities to the wire IQI values of this part of ISO 19232.The full designation may be abbreviated to the wire number of the thickest wire of the IQI (e.g. W 10) and the wire material (e.g. FE) where reference to this part of ISO 19232 is clear.EXAMPLE 2 W 10 FE4.2 MaterialAll the wires of an IQI shall

39、consist of the same material and shall be embedded in a protective covering of a material which shall not affect the image quality value. See Table 2 for usual wire materials.4.3 Marking of IQIThe marking applied on the IQI (see Figure 1) shall give the following information:a) number of the thickes

40、t wire (1, 6, 10, or 13); this is located at the side of the thickest wire;DIN EN ISO 19232-1:2013-12 EN ISO 19232-1 5b) letters identifying the wire material used, e.g. FE;c) ISO letters.EXAMPLE 10 FE ISOIQIs with the letters EN are considered to be identical to IQIs with the letters ISO.The radiog

41、raphic image of the identification shall not cause glare when the radiograph is viewed. It is recommended that the absorption of the marking is not more than twice the absorption of the thickest wire.4.4 Declaration of conformityEach IQI shall be delivered with a declaration of conformity according

42、to ISO/IEC 17050-1 which confirms that the IQI complies with this part of ISO 19232. For identification, the IQI shall be numbered and marked by the producer.Table 1 Wire numbers, diameters, and limit deviationsDimensions in millimetresImage quality indicator including WireWire centre-line spacingsW

43、 1 W 6 W 10 W 13element (wire) numbernominal wire diameterdiameter tolerances W 1 3,20 0,039601,+ W 2 2,50 7501,+ W 3 2,00 601+ W 4 1,60 0,02501+ W 5 1,25 W 6 1,00 W 7 0,80 W 8 0,63 W 9 0,50 0,01 W 10 0,40 W 11 0,32 W 12 0,25 W 13 0,20 W 14 0,16 W 15 0,125 0,005 W 16 0,100 W 17 0,080 W 18 0,063 W 19

44、 0,050DIN EN ISO 19232-1:2013-12 EN ISO 19232-1 65 Use of image quality indicators5.1 SelectionThe criteria for selecting the IQI to be used shall be the material under test and the image quality value expected or required.The wire material shall have a coefficient of absorption as close as possible

45、 to that of the material under test. Where IQIs as listed in Table 2 are used for materials other than those listed in this table, refer to ISO 19232-4. In such cases, the wire material shall have the next lowest coefficient of absorption to that of the object under test. If this is not feasible bec

46、ause the differences in absorption are too great, IQIs made of the same type of material as the object under test shall be used.Table 2 Types of IQI and wire materials used for selected groups of materialsImage quality indicatorWire number Wire materialSuitable for testing of the following materials

47、W 1 CUW 6 CUW 10 CUW 13 CUW 1 to W 7W 6 to W 12W 10 to W 16W 13 to W 19Copper Copper, zinc, tin, and their alloysW 1 FEW 6 FEW 10 FEW 13 FEW 1 to W 7W 6 to W 12W 10 to W 16W 13 to W 19Steel (low alloyed)Ferrous materialsW 1 TIW 6 TIW 10 TIW 13 TIW 1 to W 7W 6 to W 12W 10 to W 16W 13 to W 19Titanium

48、Titanium and its alloysW 1 ALW 6 ALW 10 ALW 13 ALW 1 to W 7W 6 to W 12W 10 to W 16W 13 to W 19Aluminium Aluminium and its alloys5.2 ArrangementWhen the radiograph is taken, the IQI shall be placed on the side of the section under test facing the source of radiation and remote from the detector.If th

49、is is not possible, the IQI may be placed adjacent to the side of the section under test nearest the detector. To indicate that this arrangement has been used, the image of a letter F shall be visible on the radiograph near the IQI marking.The IQI shall be placed on the object in an area where the thickness is as uniform as possible.Special arrangements may be determined by application standards.6 Determination of image qualit