ISO 16827:2012 specifies the general principles and techniques for the characterization and sizing of previously detected discontinuities in order to ensure their evaluation against applicable acceptance criteria. It is applicable, in general terms, to discontinuities in those materials and applications covered by ISO 16810.
Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).
Sisällysluettelo
Foreword
Introduction
1 Scope
2 Normative references
3 Principles of characterization of discontinuities
3.1 General
3.2 Requirements for surface condition
4 Pulse echo techniques
4.1 General
4.2 Location of discontinuity
4.3 Orientation of discontinuity
4.4 Assessment of multiple indications
4.5 Shape of discontinuity
4.6 Maximum echo height of indication
4.7 Size of discontinuity
5 Transmission technique
5.1 General
5.2 Location of discontinuity
5.3 Evaluation of multiple discontinuities
5.4 Reduction of signal amplitude
5.5 Sizing of discontinuity
Annex A Analysis of multiple indications (normative)
Annex В Techniques for the classification of discontinuity shape (normative)
Annex С Maximum echo height sizing technique (informative)
Annex D Probe movement sizing techniques (normative)
Annex E Iterative sizing technique (normative)
Annex F Mathematical algorithms for the estimation of the actual size of a discontinuity (normative)
Annex G Examples of special sizing techniques (informative)
ISO 16810:2012 Non-destructive testing -- Ultrasonic testing -- General principles
ISO 16811:2012 Non-destructive testing -- Ultrasonic testing -- Sensitivity and range setting
ISO 16823:2012 Non-destructive testing -- Ultrasonic testing -- Transmission technique
ISO 16810:2012 Non-destructive testing -- Ultrasonic testing -- General principles
ISO 16811:2012 Non-destructive testing -- Ultrasonic testing -- Sensitivity and range setting
ISO 16823:2012 Non-destructive testing -- Ultrasonic testing -- Transmission technique
ISO 16828:2012 Non-destructive testing -- Ultrasonic testing -- Time-of-flight diffraction technique as a method for detection and sizing of discontinuities
ISO 23279:2010 Non-destructive testing of welds -- Ultrasonic testing -- Characterization of indications in welds