1 Scope
This standard specifies the units and symbols of usual capacities in heating ventilation air conditioning and air cleaning equipment according to the international system of units.
The units and symbols in this standard are applicable to the usual technical performance of heating ventilation air conditioning and air cleaning equipment, excluding concentrated cooling and heating source equipments.
2 Normative References
The following normative documents contain provisions which, through reference in this standard, constitute provisions of this standard. At time of publication, the editions indicated were valid. All the standards will be revised, all parties coming to an agreement according to this standard are encouraged to study whether the latest editions of the following standards are applicable.
GB 755-87 Basic Technique Requirements for Rotating Machinery
GB 1236-85 Method for Testing Fan Aerodynamic Performance
GB 4706.1-92 Safety of Household and Similar Electrical Appliances; General Requirements
GB 6165-85 Methods for Testing Performance of High-efficiency Particulate Air Filter-Penetration and Resistance
GB 7725-87 Room Air Conditioners
GB 8070-87 Test Method for Performance of Air Distributor
GB 12218-89 Test Method for Common Air Filter Performance of Ventilation
GB 13554-92 High Efficiency Particulate Air Filter
GB/T 14294-93 Central-station Air Handling Units
GB/T 14296-93 Air Cooling and Air Heating Coils
GB 50155-92 Terminology of Heating Ventilation and Air Conditioning
GBJ 73-84 Code for Design of Clean Room
3 Definitions
The following definitions are adopted in this standard.
3.1 Heating equipment: refers to all kinds of equipments for heating in the building, such as heating boiler, unit heater, radiator and airheater etc.
3.2 Ventilation equipment: refers to the equipments to provide air change for the building for hygienic and safe air environment by natural or mechanicals method, such as ventilator, ventilating fan, dust remover, air outlet and air curtain etc.
3.3 Air conditioning equipment: is a general term for all kinds of equipments to regulate such parameters as temperature, humidity, speed and cleanliness etc. of the air in the room or enclosed space, such as central-station air handling units, air heat exchanger, humidifier, air conditioner, dehumidifier, heat recover, fan-coil unit and muffler etc.
3.4 Air cleaning equipment: refers to all kinds of equipments used for reducing the suspended particles in the air to reaching the clean degree, such as cleanroom, clean table, automatic purifier, airshower, fresh air cleaner and all kinds of air filters etc.
Foreword I
1 Scope
2 Normative References
3 Definition
4 Units and Symbols of Usual Capacities
