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BS EN ISO 16809:2019

BS EN ISO 16809:2019

$189.07

Non-destructive testing. Ultrasonic thickness measurement

Published By Publication Date Number of Pages
BSI 2019 46
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This document 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.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
Endorsement notice
7 Foreword
9 1 Scope
2 Normative references
3 Terms and definitions
4 Measurement modes
11 5 General requirements
5.1 Instruments
5.2 Probes
5.3 Couplant
5.4 Reference blocks
5.5 Test objects
12 5.6 Qualification of personnel
6 Application of the technique
6.1 Surface conditions and surface preparation
6.2 Technique
6.2.1 General
13 6.2.2 Measurement during manufacture
6.2.3 In-service measurement of residual wall thickness
14 6.3 Selection of probe
6.4 Selection of instrument
6.5 Materials different from the reference material
15 6.6 Special measuring conditions
6.6.1 General
6.6.2 Measurements at temperatures below 0 °C
6.6.3 Measurements at elevated temperatures
6.6.4 Hazardous atmospheres
7 Instrument setting
7.1 General
16 7.2 Methods of setting
7.2.1 General
7.2.2 Digital thickness instruments
7.2.3 A-scan instrument
17 7.3 Checks of settings
18 8 Influence on accuracy
8.1 Operational conditions
8.1.1 Surface conditions
8.1.2 Surface temperature
19 8.1.3 Metallic coating
8.1.4 Non-metallic coating
20 8.1.5 Geometry
8.2 Equipment
8.2.1 Resolution
21 8.2.2 Range
8.3 Evaluation of accuracy
8.3.1 General
22 8.3.2 Influencing parameters
8.3.3 Method of calculation
9 Influence of materials
9.1 General
9.2 Inhomogeneity
9.3 Anisotropy
9.4 Attenuation
9.5 Surface conditions
9.5.1 General
23 9.5.2 Contact surface
9.5.3 Reflecting surface
9.5.4 Corrosion and erosion
24 10 Test report
10.1 General
10.2 General information
25 10.3 Measurement data
26 Annex A (informative) Corrosion in vessels and piping
31 Annex B (informative) Instrument settings
34 Annex C (informative) Parameters influencing accuracy
40 Annex D (informative) Selection of measuring technique
45 Bibliography

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BS EN ISO 16809:2019
$189.07