NF EN 257 : 2011
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
MECHANICAL THERMOSTATS FOR GAS-BURNING APPLIANCES
12-01-2013
17-01-2023
Avant-propos
1 Domaine d'application
2 Références normatives
3 Définitions
4 Groupes de thermostat
5 Caractéristiques de construction
6 Caractéristiques de fonctionnement
7 Méthodes d'essais
8 Marquage, notices d'installation et d'utilisation
Annexes
A - Essais d'étanchéité - Methode volumétrique
B - Essai d'étanchéité - Méthode par chute de pression
C - Raccordements selon ISO 7-1:1982 et ISO 228-1:1982
D - Calcul du débit de la fuite d'après la chute de pression
Describes the construction and performance requirements for mechanical thermostats for gas applications. Establishes the definitions, test conditions and marking. Applies to mechanical thermostats controlling the gas flow directly or indirectly through an integral gas valve, and which do not require external electrical energy for their operation. Applies to thermostats for all gas appliances. Excludes thermostats used with gas appliances installed in the open air.
| DevelopmentNote |
Indice de classement: D36-500. PR NF EN 257 November 2008. (11/2008)
|
| DocumentType |
Standard
|
| PublisherName |
Association Francaise de Normalisation
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| EN 257:2010 | Identical |
| NBN EN 257 : 2010 | Identical |
| I.S. EN 257:2010 | Identical |
| NEN EN 257 : 2010 | Identical |
| BS EN 257:2010 | Identical |
| NS EN 257 : 2010 | Identical |
| DIN EN 257:2010-11 | Identical |
| UNE-EN 257:2010 | Identical |