Per BS2704 (British Standards Institute)
Application:
Beam profile measurement of angle beam transducers.
Geometry:
- 2" x 3" x 12"
- Contains two 1/16" diameter x 7/8" deep calibration holes on the near side and two 1/16" diameter x 7/8" deep calibration holes on the far side.
- Also contains five 1/16" diameter resolution holes drilled on 10ยบ slope; far side only.