| Reference | Name | Certification mark |
|---|---|---|
| NF016 | Cast-iron piping for sewerage and drainage |
|
| NF121 | Stone piping |
|
| NF390 | Plastics piping systems for renovation of drainage and sewerage networks |
|
| NF442 | Thermoplastic material drain or sewer system operating without pressure |
|
| QB09 | Sewerage |
|
