SIST EN ISO 11699-1:2012

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Neporušitveno preskušanje - Film za industrijsko radiografijo - 1. del: Klasifikacija sistemov filmov za industrijsko radiografijo (ISO 11699-1:2008)Zerstörungsfreie Prüfung - Industrielle Filme für die Durchstrahlungsprüfung - Teil 1: Klassifizierung von Filmsystemen für die industrielle Durchstrahlungsprüfung (ISO 11699-1:2008)Essais non destructifs - Film pour radiographie industrielle - Partie 1: Classification des systèmes films pour radiographie industrielle (ISO 11699-1:2008)Non-destructive testing - Industrial radiographic film - Part 1: Classification of film systems for industrial radiography (ISO 11699-1:2008)37.040.25Radiografski filmiRadiographic films19.100Neporušitveno preskušanjeNon-destructive testingICS:Ta slovenski standard je istoveten z:EN ISO 11699-1:2011SIST EN ISO 11699-1:2012en,fr,de01-april-2012SIST EN ISO 11699-1:2012SLOVENSKI
STANDARDSIST EN 584-1:20061DGRPHãþD



SIST EN ISO 11699-1:2012



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN ISO 11699-1
October 2011 ICS 37.040.25 Supersedes EN 584-1:2006English Version
Non-destructive testing - Industrial radiographic film - Part 1: Classification of film systems for industrial radiography (ISO 11699-1:2008)
Essais non destructifs - Film pour radiographie industrielle -Partie 1: Classification des systèmes films pour radiographie industrielle (ISO 11699-1:2008)
Zerstörungsfreie Prüfung - Industrielle Filme für die Durchstrahlungsprüfung - Teil 1: Klassifizierung von Filmsystemen für die industrielle Durchstrahlungsprüfung (ISO 11699-1:2008) This European Standard was approved by CEN on 25 September 2011.
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 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 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 11699-1:2011: ESIST EN ISO 11699-1:2012



EN ISO 11699-1:2011 (E) 2 Contents Page Foreword .3 SIST EN ISO 11699-1:2012



EN ISO 11699-1:2011 (E) 3 Foreword The text of ISO 11699-1:2008 has been prepared by Technical Committee ISO/TC 135 “Non-destructive testing” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 11699-1:2011 by Technical Committee CEN/TC 138 “Non-destructive testing” the secretariat of which 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 April 2012, and conflicting national standards shall be withdrawn at the latest by April 2012. Attention is drawn to the 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 584-1:2006. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 11699-1:2008 has been approved by CEN as a EN ISO 11699-1:2011 without any modification.
SIST EN ISO 11699-1:2012



SIST EN ISO 11699-1:2012



Reference numberISO 11699-1:2008(E)© ISO 2008
INTERNATIONAL STANDARD ISO11699-1Second edition2008-09-15Non-destructive testing — Industrial radiographic film — Part 1: Classification of film systems for industrial radiography Essais non destructifs — Film pour radiographie industrielle — Partie 1: Classification des systèmes films pour radiographie industrielle SIST EN ISO 11699-1:2012



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SIST EN ISO 11699-1:2012



ISO 11699-1:2008(E) © ISO 2008 – All rights reserved
iiiForeword 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 member 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 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 adopted 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 patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 11699-1 was prepared by Technical Committee ISO/TC 135, Non-destructive testing, Subcommittee SC 5, Radiation methods. This second edition cancels and replaces the first edition (ISO 11699-1:1998), which has been technically revised. ISO 11699 consists of the following parts, under the general title Non-destructive testing — Industrial radiographic film: ⎯ Part 1: Classification of film systems for industrial radiography ⎯ Part 2: Control of film processing by means of reference values
SIST EN ISO 11699-1:2012



SIST EN ISO 11699-1:2012



INTERNATIONAL STANDARD ISO 11699-1:2008(E) © ISO 2008 – All rights reserved
1Non-destructive testing — Industrial radiographic film — Part 1: Classification of film systems for industrial radiography 1 Scope The purpose of this part of ISO 11699 is to establish the performance of film systems. This part of ISO 11699 is applicable for the classification of film systems in combination with specified lead screens for industrial radiography (non-destructive testing). This part of ISO 11699 is intended to ensure that the image quality of radiographs — as far as this is influenced by the film system — is in conformity with the requirements of International Standards such as ISO 5579, ISO 17636 and EN 12681. This part of ISO 11699 does not apply to the classification of films used with fluorescent intensifying screens. The measurement of film systems in this part of ISO 11699 is restricted to a selected radiation quality to simplify the procedure. The properties of films will change with radiation energy, but not the ranking of film system quality. Additional methods for evaluating the photographic process are described in ISO 11699-2, by which the performance of film systems can be controlled under the conditions given in industry. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 11699-2, Non-destructive testing — Industrial radiographic films — Part 2: Control of film processing by means of reference values ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 film system combination of film and film processing which is carried out in accordance with the instructions of the film manufacturer and/or the manufacturer of the processing chemicals 3.2 film gradient G slope of the characteristic curve of a film at a specified optical density D SIST EN ISO 11699-1:2012



ISO 11699-1:2008(E) 2
© ISO 2008 – All rights reserved 3.3 granularity σD=stochastic density fluctuations in the radiograph, superimposed on the image of the object NOTE The limiting values given in this part of ISO 11699 are related to fixed radiation energies and specified screens. 3.4 characteristic curve curve showing the relationship between the common logarithm of exposure log K, and the optical density D 3.5 specular density quantitative measure of film blackening (optical density) when light passing the optics of a microdensitometer transmits the film 3.6 diffuse density quantitative measure of film blackening (optical density) as determined by a densitometer NOTE It is the sum of all transmitted and scattered light into the half sphere behind the film. 3.7 signal/noise ratio 〈industrial radiography〉 ratio of a local film density to the granularity σD at this density level NOTE It is correlated to the gradient/noise ratio. 3.8 ISO speed S reciprocal value of the dose, Ks, expressed in Gy, which results in a specified diffuse optical transmission density ()02DD−= on the processed film, where D0 is the fog and base density: s1SK= (1) 3.9 film system class classification which takes account of limiting values given in Table 1 3.10 gradient/noise ratio G/σD ratio of the gradient, G, and the granularity σD NOTE It relates directly to the signal/noise ratio. All further parameters determining the signal, such as the modulation transfer function or the energy of the radiation, are considered to be constant. 4 Sampling and storage For product specification, it is important that the samples evaluated yield the average results obtained by users. This will require the evaluation of several different batches periodically under conditions specified in this part of ISO 11699. Prior to evaluation, the samples shall be stored in accordance with the manufacturers' recommendations for a length of time, in order to simulate the average age at which the product is normally used. The basic objective in selecting and storing samples as described above is to ensure that the film characteristics are representative of those obtained by a consumer at the time of use. SIST EN ISO 11699-1:2012



ISO 11699-1:2008(E) © ISO 2008 – All rights reserved
35 Test method 5.1 Preparation The film samples shall be exposed to X-rays from tungsten target tubes. Inherent filtration of the tube, together with an additional copper filter located as close to the X-ray tube target as possible, shall provide filtration equivalent to (8,00 ± 0,05) mm of copper. The potential across the X-ray tube shall be adjusted until the half-value-absorption is obtained with (3,5 ± 0,2) mm of copper. A potential of approximately 220 kV generally meets this requirement. The film system shall include a front and a back screen of 0,02 mm to 0,04 mm lead. If single coated films are used, the emulsion coated surface shall face the X-ray tube. Good film screen contact shall be ensured. Exercise care to ensure that the film specimen does not contain density variations arising from the exposing equipment (such as non-uniform beam filters or damaged, or defective lead screens) or processing system. During and after exposure, prior to processing, maintain the film specimen at the temperature of (23 ± 5) °C and relative humidity of (50 ± 20) %. The film processing chemicals and proce
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