Central Air Conditioner Standards

Nearly half of the world's adult population is either clinically obese or overweight. Excess weight increases risk for multiple other chronic diseases and represents a major global health issue. Weight gain results from an imbalance between energy intake and expenditure, which can only be corrected...

API MPMS Chapter 5.3 and parts of API MPMS Chapter 6 cover the installation requirements and performance characteristics of turbine meters in liquid hydrocarbon service. This research work provides data that should be considered for future incorporation into these standards. Phase I of this flow...

This specification establishes requirements and test methods for dimensions and tolerances of central-vacuum hose inlet valve sockets. The requirements pertain to the dimensions, tolerances, and socket dimensions. The test methods include sampling and conditioning.

This standard applies to factory-made Central System Humidifiers, as defined in Section 3. Energy Source. This standard applies to electrically operated Central System Humidifiers that depend on the air stream of a central air system for moisture evaporation and...

1.1 This test method calculates the overall A-weighted sound power level emitted by central vacuum power units, intended for operation in domestic applications. This standard applies to the power unit only at the power unit location. To test the sound power level of a central vacuum...

This specification covers seamless austenitic steel pipe intended for high-temperature central-station service. The grades covered are five H grades and two nitrogen grades. Pipe may be either hot finished or cold finished, with a suitable finishing treatment. All pipes shall be furnished in...

4.1 The test results allow comparison of sustained air performance of central vacuum cleaners that employ various methods of separating the dirt from the air used to convey the dirt to the central power unit. The results will be expressed as a percentage of the original...

This specification covers cold expansion fittings and cross-linked (PEX) reinforcing rings for use with cross-linked polyethylene (PEX) plastic tubing in specific nominal diameters. These fittings are intended for use in residential and commercial, hot and cold, potable water distribution systems...

This specification covers prefabricated fan-coil assemblies for use in conjunction with a chilled water system for air conditioning spaces on board Naval surface ships. The fan-coil assemblies should be of the following types, sizes, and capacities, as specified (see 6.2): Type II -...

017380-000000-000000 1 Scope 1.1 These requirements cover venting systems intended for venting Category II, III, or IV gas-burning appliances as defined by the Standard for Gas-Fired Central Furnaces (except Direct-Vent Central Furnaces), ANSI Z21.47 and the National Fuel Gas Code,...

This standard specifies the Electrostatic Discharge (ESD) immunity requirements and test procedures as they apply to equipment assemblies intended for use in telecommunications central offices and similar-type environments. This standard also specifies the manufacturer's notification...

This standard applies to factory-made Central System Humidifiers, as defined in Section 3. Purpose. The purpose of this standard is to establish for Residential Central System Humidifiers: definitions; classifications; test requirements; rating requirements; minimum data requirements...

5.1 This practice provides data needed for selection of instrument systems to measure meteorological quantities and to provide an estimate of the precision of measurements made by such systems. 5.2 This practice is based on the assumption that the repeated measurement of a meteorological quantity...