This standard specifies the general requirements, inspection rules, test methods, arbitration methods, packaging, marking, storage and transportation of high and medium temperature heat treatment salt bath calibrators. This standard is applicable to heat treatment high-temperature neutral salt bath (working temperature 1000°C ~ 1350°C) and medium temperature salt bath (working temperature 700°C ~ 1000°C) calibration agents.
GB/T 223.71 Methods for chemical analysis of iron, steel and alloy. The gravimetric method after combustion in the pipe furnace for the determination of carbon content
GB/T 652 Chemical reagent--Barium chloride dihydrate
GB/T 8121 The terminology of technological materials for heat treatment*, 2012-09-03 Update
HG/T 2629 Chemical reagent.Barium hydroxide octahydrate*, 2011-12-20 Update
JB/T 5073 Limits on harmful substance in air at heat treatment workshop
JB/T 8419 Classification and code of technological materials for heat treatment
JB/T 4390-2008 history
2008JB/T 4390-2008 High and medium tempereture salt bath rectifier
1999JB/T 4390-1999 High and medium tempereture salt bath rectifier