ASHRAE STD 41.9
Standard Methods for Volatile-Refrigerant Mass Flow Measurements Using Calorimeters
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| Organization: | ASHRAE |
| Publication Date: | 29 January 2011 |
| Status: | inactive |
| Page Count: | 24 |
scope:
This standard applies to the measurement of the flow of a volatile refrigerant in the following cases:
a. where the entire flow stream of the volatile refrigerant enters the calorimeter as a subcooled liquid and leaves as a superheated vapor (evaporator-type), and
b. where the entire flow stream of the volatile refrigerant enters the calorimeter as a superheated vapor and leaves as a subcooled liquid (condenser-type).
This standard applies to all of the refrigerants listed in ANSI/ASHRAE Standard 34, Designation and Safety Classification of Refrigerants.1
PURPOSE
This standard provides recommended practices for measuring the mass flow rate of volatile refrigerants using calorimeters.
Document History
July 31, 2023
Standard Methods for Refrigerant Mass Flow Measurement Using Calorimeters
FOREWORD
Addendum a makes it easier for the higher-tier ASHRAE standards to adopt this standard by reference, updates the uncertainty requirements, and updates the steady-state criteria sections....
March 31, 2021
Standard Methods for Refrigerant Mass Flow Measurements Using Calorimeters
This standard applies to measuring mass flow rates for refrigerants and refrigerant/lubricant mixtures using calorimeters in laboratories.
This standard applies where the entire flow stream of the...
August 30, 2018
Standard Methods for Refrigerant Mass Flow Measurements Using Calorimeters
This standard applies to measuring mass flow rates for refrigerants and refrigerant/lubricant mixtures using calorimeters in laboratories.
This standard applies where the entire flow stream of the...
April 18, 2017
Standard Methods for Volatile-Refrigerant Mass Flow Measurements Using Calorimeters
A description is not available for this item.
ASHRAE STD 41.9
January 29, 2011
Standard Methods for Volatile-Refrigerant Mass Flow Measurements Using Calorimeters
This standard applies to the measurement of the flow of a volatile refrigerant in the following cases:
a. where the entire flow stream of the volatile refrigerant enters the calorimeter as a...
June 29, 2000
Calorimeter Test Methods for Mass Flow Measurements of Volatile Refrigerants
A description is not available for this item.
January 1, 2000
Calorimeter Test Methods for Mass Flow Measurements of Volatile Refrigerants
A description is not available for this item.
January 1, 1988
Standard Calorimeter Test Method for Flow Measurement of a Volatile Refrigerant
A description is not available for this item.