State system for ensuring the uniformity of measurements. State verification schedule for means of measuring the surface density of coatings in the range from 0,001 to 1,000 kg/sq m
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 3 bar. Terminology, special requirements, test methods and marking
