1.1 意图: 1.1.1 本指南旨在为放射性溶液、泥浆和泥浆的物理和流变特性的测量和计算以及为模拟这些放射性材料的特性而设计的模拟物提供指导。 1.2 适用性: 1.2.1 本指南旨在测量溶液、泥浆和污泥的质量和体积，以及液体部分中的溶解固体含量和与泥浆和污泥相关的固体含量。还测量了粒度分布。 1.2.2 本指南确定了计算密度（体积、沉降固体、上清液和离心固体）、沉降率、离心固体和沉降固体的体积和重量百分比以及未溶解固体、溶解固体和总氧化物的重量百分比所需的数据和推荐的方程式。 1.2.3 本指南旨在测量剪切强度和剪切应力作为剪切速率的函数。 1.2.4 本指南中的流变特性测量指南仅限于旋转流变仪。 1.2.5 本指南仅限于粘性和初始流量的测量，不包括振荡流变仪。 1.3 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 本指南中进行的测量仅限于放射性溶液、泥浆和泥浆以及用于模拟这些放射性材料特性的模拟物。 5.2 从放射性溶液、泥浆和泥浆的物理和流变特性的测量和计算中获得的数据对于开发用于放射性材料处理的回收、运输、混合和存储系统的设计和测试的适当模拟物至关重要。指南中提供了开发代表性模拟物的详细方法 C1750 . 这些数据还为建模这些放射性材料的流动行为、处理、运输、安全和储存提供了输入参数。 5.3 样品处理、测量方法和计算的一致性对于获得流变学和物理性质测量的可再现结果至关重要。 5.4 本指南将用于测量或计算下列物理特性: 5.4.1 沉降固体密度。 5.4.2 体积泥浆密度。 5.4.3 离心固体密度。 5.4.4 上清液密度。 5.4.5 沉降速率。 5.4.6 离心固体的体积百分比。 5.4.7 沉降后沉降固体的体积百分比。 5.4.8 未溶解固体含量。 5.4.9 溶解固体含量。 5.4.10 离心固体的重量百分比。 5.4.11 总氧化物的重量百分比。 5.4.12 离心固体的固体含量。 5.4.13 总固体含量。 5.5 本指南描述了测量流变特性的过程。本指南中描述的流变测量和计算仅限于剪切强度、剪切应力与剪切速率、表观粘度、稠度和屈服应力。 5.6 由于某些溶液、泥浆和污泥的性质，本标准中描述的并非所有测量都适用于所有样品。例如，一些污泥不会沉降；因此，沉降率测量不适用于这些样品。

1.1 Intent: 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 Applicability: 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. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 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.