CEN/TC 121/SC 5 - Testing of welds (destructive and non-destructive)

This standard specifies acceptance levels for indications from imperfections in steel butt welds detected by radiography . If agreed, the acceptance levels may be applied to other types of welds or materials.  The acceptance levels may be related to welding standards, application standards, specifications or codes. Such a relationship is shown in EN 12062 for EN 25817.  This standard assumes that the radiographic examination has been carried out in accordance with EN 1435.  When assessing whether a weld meets the requirements specified for a weld quality level, the sizes of imperfections permitted by standards are compared with the dimensions of indications revealed by a radiograph made of the weld.

ISO 17641-2:2005 specifies the required specimens, the test piece dimensions and the procedures to be followed to carry out self-restraint hot cracking tests.
The following tests are described:
T-joint weld cracking test;
weld metal tensile test;
longitudinal bend test.
The tests are designed to provide information about the hot cracking sensitivity of weld metals. The tests are not suitable for the assessment of parent materials.
This International Standard applies primarily to fully austenitic stainless steels; nickel, nickel-base and nickel-copper weld metals. It can also be used for other weld metals.
ISO 17641-2:2005 describes only how to carry out the tests and report the results. It does not give any acceptance criteria.

IS0 9018:2003 specifies the sizes of test pieces and test specimens and the procedure for carrying out tensile tests in order to determine the tensile strength and the location of fracture of welded joints with transverse stressed fillet welds. It applies to metallic materials with welded cruciform and lapped joints on plates.
Information concerning evaluation of test results is not included in this International Standard.

This standard defines eddy current examination techniques for detection of surface breaking and near surface planar imperfections, mainly in ferritic materials(weld material, heat affected zones, parent materials). The eddy current technique can also be applied to other metallic construction materials (e.g.stainless steels). The techniques can be applied to coated and uncoated objects during fabrication and in service, onshore and offshore. The examination can be carried out on all accessible surfaces and on welds of almost any configuration.

This standard defines eddy current examination techniques for detection of surface breaking and near surface planar imperfections, mainly in ferritic materials(weld material, heat affected zones, parent materials). The eddy current technique can also be applied to other metallic construction materials (e.g.stainless steels). The techniques can be applied to coated and uncoated objects during fabrication and in service, onshore and offshore. The examination can be carried out on all accessible surfaces and on welds of almost any configuration.

ISO 23277:2006 specifies acceptance levels for indications from surface breaking imperfections in metallic welds detected by penetrant testing.
The acceptance levels in ISO 23277:2006 are primarily intended for use during manufacture examination, but where appropriate they can be used for in-service inspection.
These acceptance levels can be related to welding standards, application standards, specifications or codes.

ISO 23278:2006 specifies acceptance levels for indications from imperfections in ferromagnetic steel welds detected by magnetic particle testing.
The acceptance levels in ISO 23278:2006 are primarily intended for use during manufacture examination, but where appropriate they can be used for in-service inspection.
These acceptance levels can be related to welding standards, application standards, specifications or codes.

ISO 14323:2006 covers destructive testing of welds.
ISO 14323:2006 specifies specimen dimensions and testing procedures for impact shear and cross-tension testing of spot and embossed projection welds in overlapping sheets, in any metallic material of thickness 0,5 mm to 4 mm.

No scope available

ISO 17655:2003 specifies the determination of the delta ferrite content of welds, of surfacings with austenitic weld metal, welding being carried out on welding procedure tests and production coupon test plates using any fusion welding process that is suitable for austenitic materials, with or without filler metal including welds made on components.
It is intended that the ferrite number be used exclusively for stating the delta ferrite content of austenitic weld metal as determined by the method described in ISO 17655:2003.

This European standard specifies acceptance levels for the time-of-flight diffraction technique (TOFD) of full penetration welds in ferritic steels from 6 mm up to 300 mm thickness which correspond to the quality levels of EN ISO 5817.
These acceptance levels are applicable to indications classified in accordance with CEN/TS 14751.

This European Standard specifies acceptance levels for indications from imperfections in aluminium butt welds detected by radiographic testing. If agreed, the acceptance levels may be applied to other types of welds or materials.
The acceptance levels may be related to welding standards, application standards, specifications or codes.
This European Standard assumes that the radiographic testing has been carried out in accordance with EN 1435.
When assessing whether a weld meets the requirements specified for a weld quality level, the sizes of imperfections permitted by standards are compared with the dimensions of indications revealed by a radiograph made of the weld.

This European Standard specifies acceptance levels for indications from imperfections in butt welds of steel, nickel, titanium and their alloys detected by radiographic testing. If agreed, the acceptance levels may be applied to other types of welds or materials.
The acceptance levels may be related to welding standards, application standards, specifications or codes. This European Standard assumes that the radiographic testing has been carried out in accordance with EN 1435.
When assessing whether a weld meets the requirements specified for a weld quality level, the sizes of imperfections permitted by standards are compared with the dimensions of indications revealed by a radiograph made of the weld.

This standard specifies the methods of specimen preparation, test procedures and their main objectives for the macroscopic and microscopic examination.

This European Standard specifies the sizes of test specimen and the procedures for carrying out fracture tests in order to obtain information about types, sizes and distribution of internal imperfections such as porosities, cracks, lacks of fusion, lacks of penetration and solid inclusions on the fracture surface.  This European Standard applies to metallic materials in all form of product with joints made by any fusion welding process with a thickness greater or equal to 2 mm.  This European Standard is used if required by the application standard or by the agreement between the contracting parties.

This European Standard specifies fundamental techniques of radiography with the object of enabling satisfactory and repeatable results to be obtained economically. The techniques are based on generally recognized practice and fundamental theory of the subject.  This standard applies to the radiographic examination of fusion welded joints in metallic materials.  It applies to the joints of plates or pipes. Besides its conventional meaning, "pipe" as used in this standard should be understood to cover other cylindrical bodies such as tubes, penstocks, boiler drums and pressure vessels. This standard compies with EN 444.  This standard does not specify acceptance levels of the indications.  If contracting parties apply lower test criteria, the quality achieved may be significantly lower than when this standard is stricly applied.

This European Standard specifies fundamental techniques of radiography with the object of enabling satisfactory and repeatable results to be obtained economically. The techniques are based on generally recognized practice and fundamental theory of the subject.  This standard applies to the radiographic examination of fusion welded joints in metallic materials.  It applies to the joints of plates or pipes. Besides its conventional meaning, "pipe" as used in this standard should be understood to cover other cylindrical bodies such as tubes, penstocks, boiler drums and pressure vessels. This standard compies with EN 444.  This standard does not specify acceptance levels of the indications.  If contracting parties apply lower test criteria, the quality achieved may be significantly lower than when this standard is stricly applied.

ISO 22825:2006 specifies the approach to be followed when developing procedures for the ultrasonic testing of the following welds:
welds in austenitic stainless steels;
welds in nickel-based alloys;
welds in duplex steels;
dissimilar metal welds.
The purposes of the testing can be very different, e.g.:
for the assessment of quality level (manufacturing);
for the detection of specific indications induced in service.
Acceptance levels are not included in ISO 22825:2006, but can be applied in accordance with the scope of the testing.
The requirements of ISO 22825:2006 are applicable to both manual and mechanized testing.

ISO 17653:2003 is applicable to spot welded test specimens with single sheet thicknesses ranging from 0,5 mm to 3,0 mm in steels. It may be used for non-ferrous materials in certain circumstances.
The aim of this test is to determine the influence of different steel types, welding parameters and other factors on the deformation characteristics of a spot weld. Using this test, it is possible to determine the weld diameter and the fracture type from fractured specimens. Additionally, the maximum torsion moment (torque) and the corresponding torsion angle can be determined.

ISO 17654:2003 specifies the pressure test method to be applied to resistance seam welded specimens of different types of material, e.g. uncoated and coated ferritic steels and uncoated austenitic steel sheet with single sheet thicknesses ranging from 0,3 mm to 3,2 mm.
The purpose of this pressure test is to determine the suitability of the material, welding equipment, welding parameters and of other factors on a tank, a vessel or a container for liquids or gases, which are manufactured by resistance seam welding.

This document specifies the application of the time-of-flight diffraction (TOFD) technique for the semi-, or fully- automated ultrasonic testing of fusion welded joints in metallic materials equal to and above 6 mm thickness. It is primarily intended for use on full penetration welded joints of simple geometry in plates, pipes, and vessels, where both the weld and parent material are low alloyed carbon steel. Where specified and appropriate, TOFD may also be used on other types of materials that exhibit low ultrasonic attenuation (especially that due to scatter).
Where material dependent ultrasonic parameters are specified in this document, they are based on steels having a sound velocity of (5920 ± 50) m/s for longitudinal waves, and (3255 ± 30) m/s for transverse waves. This has to be taken into account when examining materials with a different velocity.
This document makes reference to the basic pre-standard ENV 583 6 and provides guidance on the specific capabilities and limitations of TOFD for the detection, location, sizing and characterisation of discontinuities in fusion welded joints. TOFD may be used as a stand-alone method or in combination with other NDT methods or techniques, both for manufacturing inspection (pre-service) and for in-service inspection.
This document specifies four examination levels (A, B, C, D) corresponding to an increasing level of inspection reliability. Guidance on the selection of examination levels is provided.
This document permits assessment of indications for acceptance purposes. This assessment is based on the evaluation of transmitted, reflected and diffracted ultrasonic signals within a generated TOFD image.
This document does not include acceptance levels for discontinuities.

++TC forecasts updated (TCforecasts updating exercise.sj 00-11-14)++

This European Standard covers the visual examination of fusion welds in metallic materials. The examination is normally performed on welds in the as-welded condition but exceptionnally, for example when required by an application standard or by agreement between the contracting parties, the examination may be carried out at other stages during the welding process.

This European Standard specifies ultrasonic acceptance levels, 2 and 3, for full penetration welded joints in ferritic steels, which correspond to the quality levels B and C of EN 25817, respectively. Other acceptance levels can be used by agreement between the contracting parties.   An acceptance level corresponding to level D of EN 25817 has not been included in this standard as ultrasonic examination is not recommended for this weld quality.  These acceptance levels are applicable to examinations carried out in accordance with the standards referred to in EN 12062. They can, however, be applied in conjunction with other rules, where the same types of reference reflectors for sensitivity setting are used, provided it is agreed between the contracting parties.  The standard is applicable to the examination of full penetration ferritic steel welds, with thicknesses from 8 mm up to 100 mm. It can also be used for other types of welds, materials and thicknesses above 100 mm, provided the examinations have been performed with necessary consideration of the geometry and acoustical properties of the component and an adequate sensitivity can be employed to enable the acceptance levels of this standard to be applied. The nominal frequency of probes used in this European Standard is between 2 MHz and 5 MHz unless attenuation or requirements for higher resolution call for another frequency. The use of these acceptance levels in conjunction with frequencies outside this range needs to be considered carefully.

This European Standard specifies methods for the manual ultrasonic examination of fusion welded joints in metallic materials equal to and above 8 mm thick which exhibit low ultrasonic attenuation (especially that due to scatter). It is primarily intended for use on full penetration welded joints where both the welded and parent material are ferritic.  Where specified and appropriate, techniques may also be used :  - on materials other than those stated ;  - on partial penetration welds ;  - with automated equipment  by agreement between the contracting parties.  Where material dependent ultrasonic values are specified in this standard they are based on steels having an ultrasonic sound velocity of 5920 ñ 50 m/s for longitudinal waves, and 3255 ñ 30 m/s for transverse waves. This is to be taken into account when examining materials with a different velocity.   The standard specifies four examination levels, each corresponding to a different probability of detection of imperfections. Guidance on the selection of examination levels A, B and C is given in annex A. The requirements of the fourth examination level, which is intended for special applications, are in accordance with the general requirements of this standard and as agreed between the contracting parties.  This standard, by agreement between the contracting parties, permits assessment of indications, for acceptance purposes, by either of the following methods :  1) Evaluation based primarily on length and echo  amplitude of the signal indication ;  2) Evaluation based on characterization and sizing of the indication by probe movement methods.

This European Standard specifies methods for the manual ultrasonic examination of fusion welded joints in metallic materials equal to and above 8 mm thick which exhibit low ultrasonic attenuation (especially that due to scatter). It is primarily intended for use on full penetration welded joints where both the welded and parent material are ferritic.  Where specified and appropriate, techniques may also be used :  - on materials other than those stated ;  - on partial penetration welds ;  - with automated equipment  by agreement between the contracting parties.  Where material dependent ultrasonic values are specified in this standard they are based on steels having an ultrasonic sound velocity of 5920 ñ 50 m/s for longitudinal waves, and 3255 ñ 30 m/s for transverse waves. This is to be taken into account when examining materials with a different velocity.   The standard specifies four examination levels, each corresponding to a different probability of detection of imperfections. Guidance on the selection of examination levels A, B and C is given in annex A. The requirements of the fourth examination level, which is intended for special applications, are in accordance with the general requirements of this standard and as agreed between the contracting parties.  This standard, by agreement between the contracting parties, permits assessment of indications, for acceptance purposes, by either of the following methods :  1) Evaluation based primarily on length and echo  amplitude of the signal indication ;  2) Evaluation based on characterization and sizing of the indication by probe movement methods.

This European Standard specifies ultrasonic acceptance levels, 2 and 3, for full penetration welded joints in ferritic steels, which correspond to the quality levels B and C of EN 25817, respectively. Other acceptance levels can be used by agreement between the contracting parties.   An acceptance level corresponding to level D of EN 25817 has not been included in this standard as ultrasonic examination is not recommended for this weld quality.  These acceptance levels are applicable to examinations carried out in accordance with the standards referred to in EN 12062. They can, however, be applied in conjunction with other rules, where the same types of reference reflectors for sensitivity setting are used, provided it is agreed between the contracting parties.  The standard is applicable to the examination of full penetration ferritic steel welds, with thicknesses from 8 mm up to 100 mm. It can also be used for other types of welds, materials and thicknesses above 100 mm, provided the examinations have been performed with necessary consideration of the geometry and acoustical properties of the component and an adequate sensitivity can be employed to enable the acceptance levels of this standard to be applied. The nominal frequency of probes used in this European Standard is between 2 MHz and 5 MHz unless attenuation or requirements for higher resolution call for another frequency. The use of these acceptance levels in conjunction with frequencies outside this range needs to be considered carefully.

Based on quality requirements, material, weld thickness, welding process and extent of examination, this standard gives guidance for the choice of non-destructive examination methods of welds and evaluation of the results for quality control purposes.  This standard also specifies general rules and standards to be applied to the different types of examination, for either the methodology or the acceptance level for metallic materials.  Acceptance levels cannot be a direct interpretation of the quality levels defined in EN 25817 or EN 30042. They are linked to the overall quality of the produced batch of welds.  Requirements for acceptance levels for non-destructive examination comply with quality levels stated in EN 25817 or EN 30042 (moderate, indermediate, stringent), only on a general basis and not in detail for each indication.  This standard can be used by application standards or by agreement between the contracting parties.

This standard defines a flowchart procedure, see annex A, which is devoted to the classification of internal indications as planar or non-planar.  This standard is only suitable for indications located at least 5 mm below the unground surface of the joint.  [The scope of the complete standard includes a diagram]

This standard defines a flowchart procedure, see annex A, which is devoted to the classification of internal indications as planar or non-planar.  This standard is only suitable for indications located at least 5 mm below the unground surface of the joint.  [The scope of the complete standard includes a diagram]

Based on quality requirements, material, weld thickness, welding process and extent of examination, this standard gives guidance for the choice of non-destructive examination methods of welds and evaluation of the results for quality control purposes.  This standard also specifies general rules and standards to be applied to the different types of examination, for either the methodology or the acceptance level for metallic materials.  Acceptance levels cannot be a direct interpretation of the quality levels defined in EN 25817 or EN 30042. They are linked to the overall quality of the produced batch of welds.  Requirements for acceptance levels for non-destructive examination comply with quality levels stated in EN 25817 or EN 30042 (moderate, indermediate, stringent), only on a general basis and not in detail for each indication.  This standard can be used by application standards or by agreement between the contracting parties.

This European Standard specifies acceptance levels for indications from surface breaking imperfections in metallic welds detected by penetrant testing.  The acceptance levels are primarily intended for use during manufacture examination, but where appropriate they can be used for in service inspection.  The acceptance levels in this standard are based on detection capabilities that can be expected when using techniques specified in EN 571-1 and parameters recommended in Annex A. The acceptance levels can be related to welding standards, application standards, specifications or codes. Such a relationship is shown in EN 12062 for EN 25817 and EN 30042.

This European standard specifies acceptance levels for indications from imperfections in ferromagnetic steel welds detected by magnetic particle testing.  The acceptance levels are primarily intended for use during manufacture examination, but where appropriate they can be used for in service inspection.  The acceptance levels in this standard are based on detection capabilities that can be expected when using techniques specified in EN 1290 and parameters recommended in annex A. The acceptance levels can be related to welding standards, application standards, specifications or codes. Such a relationship is shown in EN 12062 for EN 25817.

This standard specifies magnetic particle examination techniques for the detection of surface imperfections in ferromagnetic welds including the heat affected zones using the magnetic method. Techniques recommended are suitable for most welding processes and joint configurations. Variations to the basic techniques that will provide a higher or lower examination sensitivity, are described in annex A.  Techniques for examination of welds, with geometries in accordance with those shown in tables 1, 2 and 3 can be used directly from this standard.  Acceptance levels for indications are described in prEN 1291.

This standard specifies magnetic particle examination techniques for the detection of surface imperfections in ferromagnetic welds including the heat affected zones using the magnetic method. Techniques recommended are suitable for most welding processes and joint configurations. Variations to the basic techniques that will provide a higher or lower examination sensitivity, are described in annex A.  Techniques for examination of welds, with geometries in accordance with those shown in tables 1, 2 and 3 can be used directly from this standard.  Acceptance levels for indications are described in prEN 1291.

This European standard specifies acceptance levels for indications from imperfections in ferromagnetic steel welds detected by magnetic particle testing.  The acceptance levels are primarily intended for use during manufacture examination, but where appropriate they can be used for in service inspection.  The acceptance levels in this standard are based on detection capabilities that can be expected when using techniques specified in EN 1290 and parameters recommended in annex A. The acceptance levels can be related to welding standards, application standards, specifications or codes. Such a relationship is shown in EN 12062 for EN 25817.

This European Standard specifies acceptance levels for indications from surface breaking imperfections in metallic welds detected by penetrant testing.  The acceptance levels are primarily intended for use during manufacture examination, but where appropriate they can be used for in service inspection.  The acceptance levels in this standard are based on detection capabilities that can be expected when using techniques specified in EN 571-1 and parameters recommended in Annex A. The acceptance levels can be related to welding standards, application standards, specifications or codes. Such a relationship is shown in EN 12062 for EN 25817 and EN 30042.

DIN - Translation mistake, Table 2, 5th line

This standard specifies acceptance levels for indications from imperfections in steel butt welds detected by radiography . If agreed, the acceptance levels may be applied to other types of welds or materials.  The acceptance levels may be related to welding standards, application standards, specifications or codes. Such a relationship is shown in EN 12062 for EN 25817.  This standard assumes that the radiographic examination has been carried out in accordance with EN 1435.  When assessing whether a weld meets the requirements specified for a weld quality level, the sizes of imperfections permitted by standards are compared with the dimensions of indications revealed by a radiograph made of the weld.

Migrated from Progress Sheet (TC Comment) (2000-07-10): UAP of 4 months (TC Res 56/1999) (CC/990811)

This standard specifies acceptance levels for indications from imperfections in steel butt welds detected by radiography . If agreed, the acceptance levels may be applied to other types of welds or materials.  The acceptance levels may be related to welding standards, application standards, specifications or codes. Such a relationship is shown in EN 12062 for EN 25817.  This standard assumes that the radiographic examination has been carried out in accordance with EN 1435.  When assessing whether a weld meets the requirements specified for a weld quality level, the sizes of imperfections permitted by standards are compared with the dimensions of indications revealed by a radiograph made of the weld.