Density measurement method and density measurement method for calcined product of radioactive waste liquid

• Main Authors: WANG ZEXUE, HE CHENG, ZHANG HUA, TAN SHENGHENG, CHANG JIONG, QIE DONGSHENG, LI BAOJUN, LI YANG, XIAN LIANG, WANG RUNCI, ZHANG KEQIAN, HONG YE, LI YUSONG, ZHU DONGDONG
• Format: Patent
• Language: Chinese; English
• Published: 01.10.2021
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to a density measurement method, which comprises the steps of respectively immersing a sample to be measured in different solvents, obtaining the volume of the solvent overflowing when the sample to be measured is immersed in each solvent, and calculating the density of the sample to be measured according to the volume and the mass of the sample to be measured; dissolving the sample to be measured in each solvent, and calculating the solubility of the sample to be measured in each solvent; according to the solubility of the to-be-measured sample in each solvent and the density of the to-be-measured sample, obtaining a fitting function of the density changing along with the solubility; and when the value of the solubility is zero, obtaining the density through calculation according to the fitting function, wherein the density is the measured density of the to-be-measured sample. According to the method, measurement errors caused by dissolution of the to-be-measured sample when the density