BS EN 1434-4. Thermal energy meters. Part 4. Pattern approval tests|Electrical testing, Ratings, Electric power systems, Heat pipes, Testing conditions, Electromagnetic radiation, Accuracy, Environment (working), Hydraulic pressure, Crime prevention devices, Interruption tests, Approval testing, Heat exchangers, Pressure testing, Electrical wave measurement, Electrostatics, Magnetic fields, Electromagnetic fields, Flow rates, Heat measurement, Calculators, Test equipment, Heat-measuring instruments, Meters, Probes, Endurance testing, Environmental testing, Thermal-cycling tests, Quality assurance systems, Transient voltages