Gas-fired central heating boilers,type B11 and B11BS boilers fitted with atmospheric burners of nominal heat input not exceeding 70 KW

رقم المستند: NL EN 297 : 2005
القطاع: Mechanical Systems and Components for General Use
TC: NL TC EO
ICS: 91.140.10
This standard specifies the requirements and test methods for the construction, safety, fitness for purpose, rational use of energy, classification and marking of gas-fired central heating boilers. This standard applies to type B11 and B11BS boilers. This standard only covers type testing