ISO 22825:2017 specifies the approach to be followed when developing procedures for the ultrasonic testing of the following welds: - welds in stainless steels; - welds in nickel-based alloys; - welds in duplex steels; - dissimilar metal welds; - austenitic welds. The purposes of the testing can be very different, for example: - for the assessment of quality level (manufacturing); - for the detection of specific discontinuities induced in service. Acceptance levels are not included in ISO 22825:2017, but can be applied in accordance with the scope of the testing (see 4.1). The requirements of ISO 22825:2017 are applicable to both manual and mechanized testing.
Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).
Sisällysluettelo
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Information required prior to testing
4.1 Items to be defined by specification
4.2 Specific information required by the operator prior to testing
5 Personnel
6 Test equipment
6.1 Conventional equipment
6.2 Phased array equipment
7 Range setting for compression waves
8 Sensitivity setting
8.1 General
8.2 Use of side-drilled holes
8.3 Use of other reference reflectors
9 Test procedure and ultrasonic techniques
9.1 Development of the test procedure
9.2 Content of the test procedure
9.3 Selection of ultrasonic technique(s)
9.4 Optimization of test technique and draft of test procedure
9.5 Practical implications of the use of refracted compression waves
10 Classification and sizing of indications
11 Testing of welds
11.1 General
11.2 Surface condition and couplant fluid
11.3 Parent metal testing
11.4 Scanning
11.5 Evaluation of indications
12 Test report
12.1 General data
12.2 Information related to the test equipment
12.3 Information related to the testing technique
12.4 Results of testing
Annex A Compression wave angle-beam techniques (informative)
Annex B Stainless steel calibration blocks for range setting (informative)
Annex C Reference blocks for sensitivity setting (informative)
EN ISO 22232-1:2020 Non-destructive testing - Characterization and verification of ultrasonic test equipment - Part 1: Instruments (ISO 22232-1:2020)
EN ISO 22232-2:2020 Non-destructive testing - Characterization and verification of ultrasonic test equipment - Part 2: Probes (ISO 22232-2:2020)
EN ISO 22232-3:2020 Non-destructive testing - Characterization and verification of ultrasonic test equipment - Part 3: Combined equipment (ISO 22232-3:2020)
EN ISO 22232-1:2020 Non-destructive testing - Characterization and verification of ultrasonic test equipment - Part 1: Instruments (ISO 22232-1:2020)
EN ISO 22232-2:2020 Non-destructive testing - Characterization and verification of ultrasonic test equipment - Part 2: Probes (ISO 22232-2:2020)
EN ISO 22232-3:2020 Non-destructive testing - Characterization and verification of ultrasonic test equipment - Part 3: Combined equipment (ISO 22232-3:2020)
ISO 17635:2016 Non-destructive testing of welds -- General rules for metallic materials
ISO 5577:2017 Non-destructive testing -- Ultrasonic testing -- Vocabulary
ISO 7963:2006 Non-destructive testing -- Ultrasonic testing --- Specification for calibration block No. 2
ISO 9712:2012 Non-destructive testing -- Qualification and certification of NDT personnel