Standard Guide for Measuring Physical and Rheological Properties of Radioactive Solutions, Slurries, and Sludges

Importancia y uso:

5.1 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.

5.2 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. Details on methods to develop representative simulants are provided in the Guide C1750. These data also provide input parameters for modeling the flow behavior, processing, transport, safety, and storage of these radioactive materials.

5.3 Consistency in the handling of samples, measurement methods, and calculations is essential in obtaining reproducible results of rheological and physical property measurements.

5.4 This guide will be used to measure or calculate the physical properties listed below:

5.4.1 Settled solids density.

5.4.2 Bulk slurry density.

5.4.3 Centrifuged solids density.

5.4.4 Supernatant density.

5.4.5 Settling rate.

5.4.6 Volume percent centrifuged solids.

5.4.7 Volume percent settled solids after settling.

5.4.8 Undissolved solids content.

5.4.9 Dissolved solids content.

5.4.10 Weight percent centrifuged solids.

5.4.11 Weight percent total oxides.

5.4.12 Solids content of the centrifuged solids.

5.4.13 Total solids content.

5.5 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.

5.6 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.

Subcomité:

C26.13

Volúmen:

12.01

Número ICS:

13.030.30 (Special wastes)

Palabras clave:

physical properties; rheology; viscosity;