This part of GB/T 10066 "Test methods for electric heating equipment" applies to electric heating equipment including industrial centerless induction furnaces for melting and heat preservation.
GB/T 10066.3-2004 history
2014GB/T 10066.3-2014 Test methods for electroheat installations.Part 3: Induction channel and induction crucible furnaces
2004GB/T 10066.3-2004 Test methods for electroheat installations Part 3:Induction crucible furnace
1988GB/T 10066.3-1988 Test methods for electroheat installations--Coreless induction furnaces