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AFNOR
NF EN IEC 61158-4-4
En Vigor
2023-04-28
Industrial communication networks - Fieldbus specifications - Part 4-4 :
data-link layer protocol specification - Type 4 elements
AFNOR
NF EN 12067-2
En Vigor
2022-11-16
Safety and control devices for burners and appliances burning gaseous or
liquid fuels - Control functions in electronic systems - Part 2:
Fuel/air ratio control/supervision of the electronic type
AFNOR
NF A04-108
En Vigor
1986-06-01
Iron and steel. Characterization of sulfide shapes in structural steels
with improved machinability using standard diagrams. Micrographic method.
AFNOR
