SIST EN ISO 16526-1:2020
(Main)Non-destructive testing - Measurement and evaluation of the X-ray tube voltage - Part 1: Voltage divider method (ISO 16526-1:2011)
Non-destructive testing - Measurement and evaluation of the X-ray tube voltage - Part 1: Voltage divider method (ISO 16526-1:2011)
ISO 16526-1:2011 specifies a method for the direct and absolute measurement of the average high voltage of constant potential (DC) X-ray systems on the secondary side of the high voltage generator. The intention is to check the correspondence with the indicated high voltage value on the control unit of the X-ray system.
This method is applied to assure a reproducible operation of X-ray systems because the voltage influences particularly the penetration of materials and the contrast of X-ray images and also the requirements concerning the radiation protection.
Zerstörungsfreie Prüfung - Messung und Auswertung der Röntgenröhrenspannung - Teil 1: Spannungsteiler-Verfahren (ISO 16526-1:2011)
Dieser Teil von ISO 16526 legt ein Verfahren zur direkten und absoluten Messung des Mittelwertes der Hochspannung von Gleichspannungs Röntgensystemen auf der Sekundärseite des Hochspannungs-generators fest. Zweck ist es, die Übereinstimmung des Istwertes mit dem angezeigten Hochspannungswert am Steuergerät des Röntgensystems festzustellen.
Dieses Verfahren wird angewendet, um eine reproduzierbare Arbeit mit Röntgensystemen sicherzustellen, denn die Hochspannung beeinflusst insbesondere die Materialdurchdringung und den Kontrast von Röntgenbildern und darüber hinaus auch die Anforderungen für den Strahlenschutz.
Essais non destructifs - Mesurage et évaluation de la tension des tubes radiogènes - Partie 1: Méthode par diviseur de tension (ISO 16526-1:2011)
L'ISO 16526-1:2011 décrit une méthode de mesurage direct et absolu de la haute tension moyenne des tubes radiogènes à tension constante (courant continu) du côté secondaire d'un générateur haute tension. Le but est de vérifier la correspondance avec la valeur de haute tension indiquée par l'unité de contrôle du tube radiogène.
Cette méthode est appliquée afin de garantir un fonctionnement reproductible des systèmes radiogènes, la tension étant un facteur particulièrement déterminant pour ce qui concerne la pénétration des matériaux et le contraste des images radiographiques ainsi que les prescriptions concernant la radioprotection.
Neporušitvene preiskave - Meritve in ugotavljanje električne napetosti na rentgenski cevi - 1. del: Metoda delitve napetosti (ISO 16526-1:2011)
General Information
- Status
- Published
- Public Enquiry End Date
- 29-Nov-2019
- Publication Date
- 23-Apr-2020
- Technical Committee
- PKG - Testing of metallic materials
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 12-Mar-2020
- Due Date
- 17-May-2020
- Completion Date
- 24-Apr-2020
Relations
- Effective Date
- 10-Mar-2020
- Effective Date
- 10-Mar-2020
- Effective Date
- 10-Mar-2020
Overview
SIST EN ISO 16526-1:2020 is a European standard developed by CEN that specifies the voltage divider method for the direct and absolute measurement of the average high voltage in constant potential (DC) X-ray systems. This part of the ISO 16526 series is essential for non-destructive testing (NDT) applications where accurate measurement and evaluation of the X-ray tube voltage are critical.
The standard focuses on measuring the voltage on the secondary side of the high voltage generator in X-ray systems. This measurement ensures the system's indicated voltage corresponds correctly to the actual high voltage applied during operation. Maintaining precise and reproducible voltage is vital as it influences material penetration, X-ray image contrast, and radiation protection requirements.
Key Topics
Scope & Purpose
The method targets constant potential X-ray systems and is used to verify the high voltage indicated at the system control unit. Its application guarantees consistent and reliable system performance, supporting quality assurance in radiographic inspections and radiation safety.Voltage Divider Principle
The voltage divider system includes:- A box with two high voltage connectors
- A resistor chain (R1 and R2) to divide the voltage
- An analog output for measuring the voltage drop across R2
- Measurement equipment such as voltmeters or oscilloscopes connected to the analog output
The voltage drop measured corresponds to the actual high voltage delivered, considering the input resistance of the measuring device. Resistor values and temperature coefficients are precisely controlled to ensure measurement accuracy and stability under operating conditions.
Measurement Accuracy
The precision requirements vary based on application:- Up to 1% accuracy for highly stabilized systems used in tomography or dosimetry
- Approximately 3% accuracy for standard radiographic or radioscopic applications
Measurement Procedure
The measuring device is connected between the high voltage generator and the X-ray tube to capture the voltage drop. The electric current flowing through the resistor chain is kept below 10% of the tube current for accurate readings.Test Reporting
The standard defines mandatory reporting elements to document results thoroughly:- X-ray system type and serial number
- Operating conditions such as tube current, voltage, and temperature
- Accuracy of the measuring instrument
- Date of measurement
- Measurement results with comparisons to indicated values
- Operator details including name and signature
Applications
Industrial Radiography and Radioscopy
SIST EN ISO 16526-1:2020 supports quality control of X-ray equipment in non-destructive testing by verifying high voltage levels to ensure consistent image quality and inspection reliability.Medical Imaging Equipment Verification
Though primarily industrial, this standard can assist in verifying constant potential X-ray system voltages, contributing to patient safety by maintaining system stability and accurate dosing.Radiation Protection Assurance
Accurate voltage measurement helps meet radiation safety requirements by controlling the X-ray tube operation parameters and minimizing radiation exposure risks.Calibration and Maintenance
The voltage divider method provides a direct measurement technique ideal for equipment calibration, routine inspections, and troubleshooting high voltage deviations in X-ray systems.
Related Standards
- EN ISO 16526-2:2020 - Constancy check of X-ray tube voltage using thick filter method
- EN ISO 16526-3:2020 - Non-invasive spectrometric method for X-ray tube voltage measurement
- EN 12544 Series - Superseded by EN ISO 16526 parts for enhanced and updated measurement methods in non-destructive testing
- ISO/IEC Directives - Guidelines for drafting and adopting international standards relevant to NDT and electrical measurement
By adhering to SIST EN ISO 16526-1:2020, organizations can ensure high voltage measurement accuracy for X-ray systems, promoting the reliability and safety of non-destructive testing processes vital in many industrial and healthcare settings.
Frequently Asked Questions
SIST EN ISO 16526-1:2020 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Non-destructive testing - Measurement and evaluation of the X-ray tube voltage - Part 1: Voltage divider method (ISO 16526-1:2011)". This standard covers: ISO 16526-1:2011 specifies a method for the direct and absolute measurement of the average high voltage of constant potential (DC) X-ray systems on the secondary side of the high voltage generator. The intention is to check the correspondence with the indicated high voltage value on the control unit of the X-ray system. This method is applied to assure a reproducible operation of X-ray systems because the voltage influences particularly the penetration of materials and the contrast of X-ray images and also the requirements concerning the radiation protection.
ISO 16526-1:2011 specifies a method for the direct and absolute measurement of the average high voltage of constant potential (DC) X-ray systems on the secondary side of the high voltage generator. The intention is to check the correspondence with the indicated high voltage value on the control unit of the X-ray system. This method is applied to assure a reproducible operation of X-ray systems because the voltage influences particularly the penetration of materials and the contrast of X-ray images and also the requirements concerning the radiation protection.
SIST EN ISO 16526-1:2020 is classified under the following ICS (International Classification for Standards) categories: 19.100 - Non-destructive testing. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN ISO 16526-1:2020 has the following relationships with other standards: It is inter standard links to SIST EN 12544-3:2000, SIST EN 12544-2:2001, SIST EN 12544-1:2000. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN ISO 16526-1:2020 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2020
Nadomešča:
SIST EN 12544-1:2000
SIST EN 12544-2:2001
SIST EN 12544-3:2000
Neporušitvene preiskave - Meritve in ugotavljanje električne napetosti na
rentgenski cevi - 1. del: Metoda delitve napetosti (ISO 16526-1:2011)
Non-destructive testing - Measurement and evaluation of the X-ray tube voltage - Part 1:
Voltage divider method (ISO 16526-1:2011)
Zerstörungsfreie Prüfung - Messung und Auswertung der Röntgenröhrenspannung - Teil
1: Spannungsteiler-Verfahren (ISO 16526-1:2011)
Essais non destructifs - Mesurage et évaluation de la tension des tubes radiogènes -
Partie 1: Méthode par diviseur de tension (ISO 16526-1:2011)
Ta slovenski standard je istoveten z: EN ISO 16526-1:2020
ICS:
19.100 Neporušitveno preskušanje Non-destructive testing
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 16526-1
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2020
EUROPÄISCHE NORM
ICS 19.100 Supersedes EN 12544-1:1999, EN 12544-2:2000, EN
12544-3:1999
English Version
Non-destructive testing - Measurement and evaluation of
the X-ray tube voltage - Part 1: Voltage divider method
(ISO 16526-1:2011)
Essais non destructifs - Mesurage et évaluation de la Zerstörungsfreie Prüfung - Messung und Auswertung
tension des tubes radiogènes - Partie 1: Méthode par der Röntgenröhrenspannung - Teil 1: Spannungsteiler-
diviseur de tension (ISO 16526-1:2011) Verfahren (ISO 16526-1:2011)
This European Standard was approved by CEN on 6 January 2020.
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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16526-1:2020 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
The text of ISO 16526-1:2011 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
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 September 2020, and conflicting national standards
shall be withdrawn at the latest by September 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 12544-3:1999, EN 12544-1:1999 and EN 12544-2:2000.
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, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 16526-1:2011 has been approved by CEN as EN ISO 16526-1:2020 without any
modification.
INTERNATIONAL ISO
STANDARD 16526-1
First edition
2011-12-15
Non-destructive testing — Measurement
and evaluation of the X-ray tube
voltage —
Part 1:
Voltage divider method
Essais non destructifs — Mesurage et évaluation de la tension des
tubes radiogènes —
Partie 1: Méthode par diviseur de tension
Reference number
ISO 16526-1:2011(E)
©
ISO 2011
ISO 16526-1:2011(E)
© ISO 2011
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2011 – All rights reserved
ISO 16526-1:2011(E)
Contents Page
F oreword .
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...