Significance and Use
Measurements performed in this guide are limited to radioactive solutions, slurries, and sludges as well as simulants designed to model the properties of these radioactive materials.
Data obtained from the measurement and calculation of physical and rheological properties of radioactive solutions, slurries, and sludges are essential in developing appropriate simulants for design and testing of retrieval, transport, mixing, and storage systems for treatment of radioactive materials. These data also provide input parameters for modeling the flow behavior, processing, transport, safety, and storage of these radioactive materials.
Consistency in the handling of samples, measurement methods, and calculations is essential in obtaining reproducible results of rheological and physical property measurements.
This guide will be used to measure or calculate the physical properties listed below.
Bulk slurry density
Settled solids density
Centrifuged solids density
Volume percent centrifuged solids
Volume percent settled solids after settling
Undissolved solids content
Dissolved solids content
Weight percent centrifuged solids
Weight percent total oxides
Solids content of the centrifuged solids
Total solids content
This guide describes the process of performing measurement of the rheological properties. The rheological measurements and calculations described in this guide are limited to shear strength, shear stress versus shear rate, apparent viscosity, consistency, and yield stress.
Due to the nature of some solutions, slurries, and sludges, not all of the measurements described in this standard may be applicable to all samples. For example, some sludges do not settle; therefore, settling rate measurements are not applicable for these samples.
1.1.1 The intent of this guide is to provide guidance for the measurement and calculation of physical and rheological properties of radioactive solutions, slurries, and sludges as well as simulants designed to model the properties of these radioactive materials.
1.2.1 This guide is intended for measurement of mass and volume of the solution, slurries, and sludges as well as dissolved solids content in the liquid fraction and solids content associated with the slurries and sludges. Particle size distribution is also measured.
1.2.2 This guide identifies the data required and the equations recommended for calculation of density (bulk, settled solids, supernatant, and centrifuged solids), settling rate, volume and weight percent of the centrifuged solids and settled solids, and the weight percent undissolved solids, dissolved solids, and total oxides.
1.2.3 This guide is intended for measurement of shear strength and shear stress as a function of shear rate.
1.2.4 Rheological property measurement guidelines in this guide are limited to rotational rheometers.
1.2.5 This guide is limited to measurements of viscous and incipient flow and does not include oscillatory rheometry.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C859 Terminology Relating to Nuclear Materials
C1751 Guide for Sampling Radioactive Tank Waste
D1193 Specification for Reagent Water
ISO13320-1 Particle Size Analysis--Laser Diffraction Methods. Part 1: General Principles, International Organization for Standardization, Geneva, Switzerland (1999)
physical properties; rheology; viscosity
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Citing ASTM Standards
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