This standard specifies the technical requirements and inspection rules for muffle furnace temperature controllers used for coal analysis. This standard applies to microprocessor digital temperature controllers that control the heating process of muffle furnaces in coal analysis.
MT/T 620-1996 history
2009MT/T 620-2008 Technique specifications of muffle furnace temperature controller for coal analysis
1996MT/T 620-1996 Technical specification of muffle furnace temperature controller for coal analysis