Back

EVS-EN ISO 32543-3:2026

Non-destructive testing - Characteristics of focal spots in industrial X-ray systems - Part 3: Measurement of the effective focal spot size of mini and micro focus X-ray tubes (ISO 32543-3:2026)

General information

Valid from 02.02.2026
Base Documents
ISO 32543-3:2026; EN ISO 32543-3:2026
ICS Groups
19.100 Non-destructive testing
Directives or regulations
None

Standard history

Status
Date
Type
Name
02.02.2026
Main
EVS-EN ISO 32543-3:2026
01.03.2000
Main
EVS-EN 12543-5:2000
This document specifies a method for the measurement of focal spot sizes within the range of 5 µm to 300 µm of X-ray systems up to and including 225 kV tube voltage. This determination is based on the evaluation of an image with a dedicated focal spot that has been radiographically recorded using an edge and evaluated with a digital method.
The imaging quality and the resolution of X-ray images depend highly on the characteristics of the effective focal spot, in particular its size and the two-dimensional intensity distribution as seen from the detector plane.
For the characterization of commercial X-ray tube types (i.e. for advertising or trade), the nominal values of Annex A are preferred.
NOTE            The same procedure can be used at higher kilovoltages by agreement but the accuracy of the measurement can be poorer.

Required fields are indicated with *

*
*
*
PDF
19.84 € incl tax
Paper
19.84 € incl tax
Browse standard from 2.48 € incl tax
Standard monitoring
English (PDF 707 KB)

Related products

Main

EVS-EN ISO 9712:2022

Non-destructive testing - Qualification and certification of NDT personnel (ISO 9712:2021)
Newest version Valid from 01.04.2022
Main

EVS-EN ISO 9712:2012

Non-destructive testing - Qualification and certification of NDT personnel (ISO 9712:2012)
Withdrawn from 01.04.2022
Main

EVS-EN ISO 3452-1:2021

Non-destructive testing - Penetrant testing - Part 1: General principles (ISO 3452-1:2021)
Newest version Valid from 20.07.2021
Main

EVS-EN 13018:2016

Non-destructive testing - Visual testing - General principles
Newest version Valid from 02.03.2016

Standards designation

EVS Estonian standard
EN European standard (published by an CEN or CENELEC)
EN ISO International standard adopted as an European standard
ISO International Organization for Standardization’s standard
IEC International Electrotechnical Commission’s standard
HD CENELEC’s harmonisation document
   
EVS-EN European standard implemented in Estonia
EVS-EN ISO International standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IEC International standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IEC International electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
   
A, AMD amedment
+A a full standard plus the amendment
/A only amendment
COR, AC corrigendum
+COR a full standard plus the corrigendum
NA national annex
+NA a full standard plus the national annex
/NA only national annex
TS technical specification
TR technical report
CWA agreement, developed by a CEN or CENELEC
prEVS-EN (etc) draft standard
   
et the standard is in Estonian only
en the standard is in English only
et-en the standard is in Parallel text Estonian-English