1.1 这些试验方法包括使用重力对流炉（方法a）、红外辐射水分分析仪（方法B）或微波干燥系统（方法C）测定二氧化钛颜料水泥浆中固体的重量百分比。 1.2 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。 1.3 本测试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、健康和环境实践，并确定监管限制的适用性。 1.4 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====== 4.1 这些试验方法旨在作为一种快速、可靠的程序，用于测量水泥浆中二氧化钛颜料的含量。固体百分比中的颜料含量包括用于制备稳定浆料的各种非挥发性添加剂。由于经过高度处理的二氧化钛颜料上的氧化铝和二氧化硅处理可能会随着干燥时间的延长而有所变化，在烘箱法中，浆料的固体在105°C下加热60至65分钟后被视为干燥。与红外水分分析仪相关的高温也可能影响对高度处理的TiO的氧化铝和二氧化硅处理的变化 2. 产品。因此，谨慎选择时间和温度对于红外法获得准确结果至关重要。由于与微波干燥系统相关的测试持续时间较短，因此不需要担心过度干燥。

1.1 These test methods cover the determination of the weight percent of solids in aqueous slurries of titanium dioxide pigments by either the use of a gravity-convection oven (Method A), infrared radiation moisture analyzer (Method B), or a microwave drying system (Method C). 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This test 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 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 ====== 4.1 These test methods are intended as a quick and reliable procedure for measuring the titanium dioxide pigment content of aqueous slurries. Included with the pigment content in the percent solids are the various nonvolatile additives used in preparing a stable slurry. Because the aluminum and silica oxide treatments on the more highly treated titanium dioxide pigments may change somewhat with prolonged drying, in the oven method the solids of the slurry are considered dry after heating at 105°C for 60 to 65 min. The high temperature associated with the infrared moisture analyzer may also effect a change in the aluminum and silica oxide treatment on highly treated TiO 2 products. Therefore, care in selection of time and temperature are critical to obtain accurate results with the infrared method. With the short duration of test associated with the microwave drying system, overdrying is not a concern.