ISO 22232-3-2020 pdf download.Non-destructive testing 一 Characterization and verification of ultrasonic test equipment一 Part 3: Combined equipment.
During the baseline measurements, the relevant parameters of the instrument controls, e.g. frequency, pulse energy, suppression/reject, pulse repetition frequency, shall be the same as those to be used for subsequent tests.
The type of test block, cable type and cable length used for these baseline measurements shall also be the same as those used for subsequent tests.
For the measurement of base values, it is assumed that the probe(s), cable(s) and instrument are in proper condition, especially for used parts.
6.2 Physical state and external aspects
6.2.1 Procedure
Visually inspect the outside of the ultrasonic instrument, probe(s), cable(s) and calibration block for physical damage or wear which can influence the system’s current operation or future reliability.
In particular, inspect the probe contact surface for physical damage or wear.
If the probe is assembled from separate components, test that the components are assembled correctly, e. g. provide suitable coupling.
Test for instability of electrical contacts.
6.2.2 Acceptance criterion
Any damage or wear which can influence the system’s current operation or future reliability, e. g. by instability of electrical contacts, shall result in replacement, repair and/or verification according to Group 2 tests of Iso 22232-1 or to ISO 22232-2 for the affected component.
6.2.3 Frequency of testing
The equipment shall be tested once per day for the equipment to be used during that day.
6.3 Tests for angle-beam probes
6.3.1 General
The probe index point and the beam angle shall be determined either:
— separately as specified in 6.3.2 and £33; or simultaneously as specified in £3A.
These tests shall be performed for each angle-beam probe to be used during that day.
The geometry, surface conditions and material of the reference block shall be documented.
6.3.2 Probe index point
6.3.2.1 General
The probe index point shall be verified on calibration blocks according to ISO 2400 or ISO 7963. The probe index point shall be verified prior to the determination of the beam angle.
6.3.2.2 Procedure
Position the probe on the appropriate side of the block to obtain a reflection from the quadrant.ISO 22232-3 pdf download.