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AFNOR
AFNOR
NF EN 488-2
En Vigor
2025-03-19
District heating and district cooling pipes - Bonded pipe systems for
directly buried hot and cold water networks - Part 2: Factory made steel
service valve assembly for steel service pipes, polyurethane thermal
insulation and a casing of polyethylene
AFNOR
NF EN IEC 63522-27
En Vigor
2025-06-06
Electrical relays - Testing and measurement - Part 27: Electrical
contact noise
AFNOR
NF EN 60746-2
En Vigor
2004-05-01
Expression of performance of electrochemical analyzers - Part 2 : pH value
