EN ISO 16811:2014

Foreword
Introduction
1 Scope
2 Normative references
3 General
4 Determination of probe index
  and beam angle
5 Time base setting
6 Sensitivity setting and echo
  height evaluation
Annex A (normative) - Quantities and symbols
Annex B (normative) - Reference blocks
        and reference reflectors
Annex C (normative) - Determination of sound
        path distance and impingement angle in
        concentrically curved objects
Annex D (informative) - General DGS diagram
Annex E (informative) - Determination of
        contact transfer correction factors
Bibliography

ISO 16811:2012 specifies the general rules for setting the timebase range and sensitivity (i.e. gain adjustment) of a manually operated ultrasonic flaw detector with A-scan display in order that reproducible measurements may be made of the location and echo height of a reflector.ISO 16811:2012 is applicable to techniques employing a single contact probe with either a single or twin transducers, but excludes the immersion technique and techniques employing more than one probe.