ASHRAE 41.8 Standard Methods for Liquid Flow Measurement.
ASHRAE 41.8 Standard Methods for Liquid Flow Measurement the 2016 edition, the scope has been expanded to cover the breadth of liquid flow measurement devices used for testing heating, ventilating, air-conditioning, and refrigeration (HVAC&R) systems and also components, except for refrigerant liquid flow measurement devices, which are the focus of ASHRAE Standard 41.10. This standard now covers liquid flow measurements under both laboratory and field conditions and New revision to meet ASHRAE’s mandatory language requirements.
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Selecting an appropriate liquid flow flowmeter can be a daunting task given the wide variety of operating principles, measurement precision, and costs of commercial products. Whether liquid flow measurements to be taken in a laboratory or in the field, selecting the appropriate meter should be based on the required measurement accuracy. Once We select a liquid flow meter , the user may need to consult with the meter manufacturer regarding installation specifics, operating range limits, calibration limits, and other similar
specifics in order to obtain the expected measurement accuracy.
ASHRAE 41.8 Standard Methods for Liquid Flow Measurement.
- Purpose
![ASHRAE 41.8,ASHRAE ,ASHRAE Standard,Liquid Flow Measurement,Flow Measurement,HVAC]()
- Scope
- Definitions
- Classifications Requirements
- Instruments
- Liquid Flow Measurement Methods
- Uncertainty Requirements.
- Test Report
- References
- Informative Annex A: Bibliography
- Informative Annex B: An Uncertainty Analysis Example for a Coriolis Flowmeter
- Annex C: An Uncertainty Analysis Example for a Differential Pressure Flowmeter
- Informative Annex D: Information Regarding Liquid Flow Measurement Uncertainties for Installations That Do not Meet the Flowmeter Manufacturer’s Requirements
For field test measurements, the manufacturer’s installation specifics are often not achievable. Informative Annex D provides information regarding liquid flow measurement uncertainties for installations that do not meet the flow meter manufacturer’s requirements. Safety is an important consideration for all procedures involving liquids, particularly with regard to flammability, toxicity, and corrosiveness. As such, safety glasses and other personal protection equipment should be worn.
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