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Standard
ISO 6640
First edition
Measurement of density of water-
2024-05
sediment mixture using radiation
transmission method
Reference number
ISO 6640:2024(en) © ISO 2024
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ISO 6640:2024(en)
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Published in Switzerland
© ISO 2024 – All rights reserved
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ISO 6640:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Protection against ionizing radiation . 2
5 Properties of sediments . 2
5.1 General .2
5.2 Particle size .2
6 Principles of radiation transmission and backscattering methods . 2
6.1 General .2
6.2 Principle of gamma and X-ray transmission method .2
6.3 Principle of gamma ray backscattering method .5
7 Calibration procedure . 6
Annex A (informative) Prototypes of instruments . 7
Annex B (informative) Calibration . 9
Annex C (informative) Case study: Measurement of vertical profile of water-sediment mixture
density.12
Bibliography .
...