Heating boilers. Part 4. Heating boilers with forced draught burners. Special requirements for boilers with forced draught oil burners with output up to 70 kW and maximum operating pressure of 0,3 MPa. Terminology, special requirements, test methods and marking
Test methods for electrical materials, printed boards and other interconnection structures and assemblies. Part 5-1. General test methods for materials and assemblies. Guidance for printed board assemblies
