PH TOOL PHASED ARRAY IIW BLOCK – ISO 19675
PH Tool is proud to be one of the first manufacturers to offer the PAUT IIW Block to the NDT market, and to have had the opportunity to provide design input during the development of the new spec. When purchased, the customer can be sure that this version meets the many exacting requirements of ISO/FDIS 19675. The process starts with carefully-selected, high-quality fine-grained steel, which is made in a special size by PH Tool’s preferred mill. Material selection is followed by heat treatment, flaw detection, material attenuation check, material velocity checks (longitudinal and transverse wave,) machining and surface finish preparation, block marking and identification, nickel-plating in our dedicated in-house plating line (for steel test blocks,) and preparation of a comprehensive documentation package.
Each block will ship with a documentation package including:
- PH Tool NIST-traceable Certification Report stating conformance to ISO 19675.
- Material Test Report for traceability of the specific heat or lot of raw material used.
- PMI Test Report showing results of chemical analysis via XRF testing.
- Dimensional Report with main physical dimension of the block and hole diameters as-measured.
- Material attenuation results in accordance with para. 5.2.3 of the spec.
- Velocity measurements in accordance with Annex A of the spec.
The PAUT IIW Block, made in accordance with ISO 19675 (currently ISO/FDIS 196775,) was designed by an international committee of NDT experts with the express purpose of creating a globally accepted, standardized block for Phased Array Ultrasonic calibrations. Before the development of this spec, there were no international standards describing a specific calibration block for calibrating PAUT systems.
Existing IIW-Type Blocks and the ISO 2400 block were determined to be not ideally suited for this purpose. This new and practical design easily takes care of the essential PAUT calibrations and many more. Its design is inspired by several code requirements, such as those found in ASME, EN, ISO, and ASTM.
Examples of possible system functions that can be checked by the PAUT IIW Block:
- Probe index.
- Beam angle.
- Beam squint angle.
- Linearity of time base.
- Calibration of time base.
- Linearity of attenuator.
- Linearity of screen height.
- Pulse duration.
- Measurement of dominant frequency.
- Signal-to-noise ratio (SNR).
- Wedge delay.
- Assess for grating lobes.
- Active element assessment.
- Sensitivity equalization for E-scans.
- Sensitivity equalization for S-Scans (ACG).
- Plotting check.
- Element assignment.
- Anisotropy assessment.
For further information please email: firstname.lastname@example.org