Thermal insulation: operational properties and methods of research Alexey Zhukov, Tatiana Konoval’tseva, Ekaterina Bobrova, Ekaterina Zinovieva and Kazbek Ivanov MATEC Web Conf., 251 (2018) 01016 Published online: 14 December 2018 DOI: 10.1051/matecconf/201825101016