ISO 16809:2017 specifies the principles for ultrasonic thickness measurement of metallic and non-metallic materials by direct contact, based on measurement of time of flight of ultrasonic pulses only.
Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).
Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Measurement modes
5 General requirements
5.1 Instruments
5.2 Probes
5.3 Couplant
5.4 Reference blocks
5.5 Test objects
5.6 Qualification of personnel
6 Application of the technique
6.1 Surface conditions and surface preparation
6.2 Technique
6.3 Selection of probe
6.4 Selection of instrument
6.5 Materials different from the reference material
6.6 Special measuring conditions
7 Instrument setting
7.1 General
7.2 Methods of setting
7.3 Checks of settings
8 Influence on accuracy
8.1 Operational conditions
8.2 Equipment
8.3 Evaluation of accuracy
9 Influence of materials
9.1 General
9.2 Inhomogeneity
9.3 Anisotropy
9.4 Attenuation
9.5 Surface conditions
10 Test report
10.1 General
10.2 General information
10.3 Measurement data
Annex A Corrosion in vessels and piping (informative)
Annex B Instrument settings (informative)
Annex C Parameters influencing accuracy (informative)
Annex D Selection of measuring technique (informative)