简要说明：

7D2B80-AA  7D2B80-AA 7D2B80-BA 7D2B80-BC
7D2B80-BA
7D2B80-BB
7D2B80-BC
7D2B80-BD
7D2B80-BG
7D2B80-BH
7D2B80
7D2B80
7D2B80
7D2B80

 AA
Non-hazardous area
 

  BA
ATEX II1G Ex ia IIC
 

  BB
ATEX II1/2G Ex ia IIC
 

  BC
ATEX II1/2G Ex d[ia] IIC
 

  BD
ATEX II 1/3G Ex ic[ia] IIC
 

  BG
ATEX II3G Ex nA II
 

  BH
ATEX II3G Ex ic IIC
 

  BJ
ATEX II2G Ex ia IIC
 

  BK
ATEX II2G Ex d[ia] IIC
 

  B2
ATEX II 1/2G Ex ia, II2D Ex tb IIIC
 

  B3
ATEX II 1/2G Ex d[ia], II2D Ex tb IIIC
 

  C2
CSA C/US IS Cl.I,II,III Div. 1 Gr.A-G
 

  C3
CSA C/US XP Cl.I,II,III Div.1 Gr-A-G
 

  C4
CSA C/US NI Cl.I Div.2 Gr. ABCD
 

  IA
IECEx Z0 Ex ia IIC
 

  IB
IECEx Z0/Z1 Ex ia IIC
 

  IC
IECEx Z0/Z1 Ex d[ia] IIC
 

  ID
IECEx Z0/Z2 Ex ic[ia] IIC
 

  IG
IECEx Z2 Ex nA II
 

  IH
IECEx Z2 Ex ic IIC
 

  IJ
IECEx Z1 Ex ia IIC
 

  IK
IECEx Z1 Ex d[ia] IIC
 

  I4
IECEx Z0/Z1 Ex ia IIC; IECEx Z21 Ex tb IIIC
 

  I5
IECEx Z0/Z1 Ex d[ia]IIC; IECEx Z21 Ex tb IIIC
 

  MA
INMETRO Z0 Ex ia IIC
 

  MB
INMETRO Z0/1 Ex ia IIC
 

  MC
INMETRO Z0/1 Ex d(ia) IIC
 

  MG
INMETRO Z2 Ex nA II
 

  ND
NEPSI Ex ic[ia] IIC Zone2
 

  NF
NEPSI Ex ia IIC Zone1
 

  NH
NEPSI Ex ic[ia] IIC Gc Zone2
 

  NJ
NEPSI Ex d[ia] IIC Zone1
 

  NK
NEPSI Ex nA IIC Zone2
 

  N4
NEPSI Ex ia IIC Zone 0/1 DIP A21
 

  N5
NEPSI Ex d[ia] IIC Zone 0/1 DIP A21
 

  TC
*TIIS Ex d[ia] IIC T4