DD ENV 1259-2:1997

Contents
Committees responsible
National Foreword
Foreword
1. Scope
2. Normative references
3. Definitions
3.1 Radiant reference plane
3.2 Irradiance
3.3 Measuring plane
3.4 Measurement grid
4. Symbols
5. Requirement for rational use of energy
6. Test method
6.1 Principle
6.2 Test equipment
     6.2.1 General requirements for the test sensor
     6.2.1.1 Characteristics
     6.2.1.2 Sensor purging
     6.2.1.3 Sensor protection
     6.2.2 Mechanical test equipment
     6.2.3 Measurement position for sensor
6.3 General test conditions
     6.3.1 Test chamber
     6.3.2 Flue gas extraction
     6.3.3 Installation of appliance
     6.3.4 Influence of temperature control
     6.3.5 Electrical supply
     6.3.6 Operating conditions
6.4 Test procedure
     6.4.1 Measurement principle
     6.4.2 Measuring method
6.5 Calculation of radiant power
6.6 Calculation of heat input
6.7 Calculation of radiant efficiency
6.8 Test report
Annexes
A (informative) General method
B (informative) Worked example for a plaque
      heater of radiant efficiency (table and diagram)

Gives the requirements and test method B for the rational energy saving of radiant heaters and plaque heaters for commercial and industrial application.