1. Merinov, P.E., Kareeva, M.A., and Grigor’iev, B.P., Method of magnetic saturation for certification of calibration blocks of the content of ferritic phase in steels of austenitic–ferritic class, Tr. TsNIITMASH, 1989, no. 215, pp. 72–76.
2. GOST (State Standard) 26364–90. Ferritometers for austenitic grade steels. General specifications, Moscow: Izd. Standartov, 1991.
3. GOST (State Standard) 8.518–84. State system of measurement uniformity. Ferritometers for austenitic grade steels. Verification technique, Moscow: Izd. Standartov, 1985.
4. GOST (State Standard) 22838–77. Heat resistant alloys. Methods of control and evaluation of macrostructure, Moscow: Izd. Standartov, 1979.
5. GOST (State Standard) 11878–66. Austenitic steel. Methods for measuring the content of ferrite phase in bars, Moscow: Standartinform, 2011.