Scope

This Standard sets out the methods for the following:
(a) The calibration of the density systems of a nuclear thin-layer density gauge, using standard blocks. The density calibration equations, so derived, define the relationships between density count ratio and field density reading.
(b) The calibration of the depth factor systems of a nuclear thin-layer density gauge, using standard blocks and plates. The depth factor calibration equations, so derived, define the relationships between the depth factors and the thickness of a surface (top) layer.
NOTE: The gauge calculates the density of a surface layer of nominated thickness, using the densities measured at two different backscatter systems (system 1 and system 2) and the depth factors for the nominated thickness.
An adjustment of the calibration equation is determined for each material tested from measurements of field density, as detailed in AS/NZS 2891.14.2.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
Pages
ISBN
Committee	CE-006
Supersedes	DR AS/NZS 2891.14.3 CP AS/NZS 2891.14.3:1999