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      IIA:丙酮/Acetone,乙烷/Ethane,苯/Benzene,石油/Petrol,丁烷/Butane,丙烷/Propane,甲烷/Methane;

      IIB:乙烯/Ethylene, 煤氣/Town gas;

      IIC:氫/Hydrogen,乙炔/Acetylene
      溫度組別:
      最高表面溫度
      450°C
      300°C
      280°C
      260°C
      230°C
      215°C
      200°C
      180°C
      165°C
      160°C
      135°C
      120°C
      100°C
      85°C
      溫度組別
      IEC
      T1
      T2
       
       
       
       
      T3
       
       
       
      T4
       
      T5
      T6
      NEC(USA)
      T1
      T2
      T2A
      T2B
      T2C
      T2D
      T3
      T3A
      T3B
      T3C
      T4
      T4A
       
       

       


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