ISO 23864-2021 pdf download.Non-destructive testing of welds – Ultrasonic testing一Use of automated total focusing technique (TFM] and related techno logies.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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 5577, Non-destructive testing — Ultrasonic testing — Vocabulary
ISO 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) — Quality levels for imperfections
ISO 9712, Non-destructive testing — Qualification and certification of NDT personnel
ISO 17635, Non-destructive testing of welds — General rules for metallic materials
ISO 18563-1, Non-destructive testing — Characterization and verification of ultrasonic phased array equipment — Part 1: Instruments
ISO 18563-2, Non-destructive testing — Characterization and verification of ultrasonic phased array equipment — Part 2: Probes
ISO 23865:202 1, Non-destructive testing — Ultrasonic testing — General use offull matrix capture/ total focusing method technique
ISO 23243, Non-destructive testing — Ultrasonic testing with arrays – Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5577, ISO 17635, ISO 23865 and ISO 23243 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
4 Testing levels
Quality requirements for welded joints are mainly associated with the material, the welding process and the service conditions. To accommodate all these requirements, this document specifies four testing levels (A, B, C, and D).
From testing level A to testing level C, an increasing probability of detection is achieved by an increasing testing coverage, i.e. covering the test volume in multiple ways, e.g. number of imaging paths, number of array positions.
Testing level D may be agreed for special applications using a written procedure which shall take into account the general requirements of this document. This includes tests of metals other than ferritic steel, tests on partial penetration welds, tests at object temperatures outside the range of ZZ For level D, a verification on test blocks is mandatory.
Testing levels related to quality levels shall he in accordance with ISO 5817 or technically equivalent standards. The appropriate testing level can be specified by standards for testing of welds (e.g. ISO 17635), by product standards or by other documents. When ISO 17635 is specified, the recommended testing levels are as given in Table 1.ISO 23864 pdf download.