The NF mark certifies compliance of products with applicable national, European and international normative documents or with the conditions specified in normative documents referred to in certification reference systems.

For the development of the NF mark for construction products, AFNOR Certification commissioned the CSTB to perform all certification operations as a certification body, from the development of certification reference documents to the issuance of certificates and monitoring of certificate holders.

As the coordinator of the NF mark, AFNOR Certification determines the terms of use for the mark, which are described in the "Certification Rules for the Mark".

The CSTB works as a certification body authorized to determine the conditions under which the NF mark is issued to applicants, maintained by holders, suspended or withdrawn. These terms are described in the certification reference documents.

Products assessed

Reference Product
NF016 Cast-iron piping for sewerage and drainage
NF017 Sanitary appliances
NF045 Antipollution of water installations
NF055 Rigid non-plasticized PVC pipes and fittings
NF057 Bitumen shingles
NF076 Sanitary components
NF077 Sanitary tapware
NF079 Control valves and safety valves
NF081 Gypsum boards
NF116 Acrylic sheets
NF121 Stone piping
NF126 PVC window profiles
NF197 Valves - Hydraulic fountain fittings
NF202 Shutters
NF240 Toilet seats
NF249 Fibre-cement profiled plates
NF384 Hollow core slabs made of reinforced concrete and prestressed concrete
NF390 Plastics piping systems for renovation of drainage and sewerage networks
NF406 Water treatment appliances
NF411 Metal framing components for gypsum board
NF421 Garage doors - individual housing
NF442 Thermoplastic material drain or sewer system operating without pressure
NF547 Expanded polystyrene-based blocks for formwork and lightweight blocks for simple formwork
NF548 Composite walls with or without insulation and sandwich walls