Standard
Track updates
AS 2331.1.5-2001
[Current]Methods of test for metallic and related coatings, Method 1.5: Local thickness tests — Beta-backscatter method
Sets out a method for the non-destructive measurement of coating thickness using beta-backscatter gauges. Applies to both metallic and non-metallic coatings on both metallic and non-metallic substrates.
Published: 11/12/2001
Pages: 15
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
PREFACE
1 SCOPE
2 DEFINITIONS
3 PRINCIPLE
4 INSTRUMENTATION
5 FACTORS RELATING TO ACCURACY
5.1 Counting statistics
5.2 Coating and substrate materials
5.3 Aperture
5.4 Coating thickness measurement errors
5.4.1 In the logarithmic range
5.4.2 In the linear range
5.4.3 In the hyperbolic range
5.5 Resolving time of the detector
5.6 Source geometry
5.7 Curvature
5.8 Substrate thickness
5.8.1 Test specimens without intermediate layers between the coating and the basis material
5.8.2 Test specimens with intermediate layers between the coating and the basis material
5.9 Surface cleanliness
5.10 Substrate material
5.11 Density of coating material
5.12 Composition of coating
5.13 Energy of beta particles
5.14 Measurement time
5.15 Activity of radioactive source
5.16 Coating-substrate combination
5.17 Surface roughness
6 CALIBRATION OF INSTRUMENTS
6.1 Frequency of calibration
6.2 Method of calibration
6.3 Calibration standards
6.4 Substrate thickness
6.5 Curvature
7 MEASURING PROCEDURE
7.1 Calibration and operation
7.2 Precautions
7.2.1 Substrate thickness
7.2.2 Measuring aperture
7.2.3 Curved specimens
7.2.4 Substrate material
7.2.5 Surface cleanliness
7.2.6 Measuring time
7.2.7 Continuous measurements
8 MEASURING ACCURACY AND PRECISION
9 REPORT
APPENDIX A
APPENDIX B
APPENDIX C
Cited references in this standard
Content history
[Superseded]
[Superseded]
DR 99377
AS 2331.1.5-2001 REC:2017
One-time Purchase
Access via web browser on any device
One-time purchase
Single publication
Offline access via PDF^
$104.71 AUD
Inclusive of GSTFormat *
Web Reader
Licenses *
1 user
Total$104.71 AUD
IMPORTANT