ASTM/DOE Hot Box Round Robin
Technical Report
·
OSTI ID:6667692
This report presents the data and data analysis from twenty-one laboratories that completed a series of tests on 4-inch thick specimens of polystyrene in either a guarded or calibrated hot box (ASTM C 236 and C 976). The data analysis resulted in the following recommended precision and bias statements for the two ASTM Standard Test Methods. Measurements from two different laboratories on the same specimen could differ by up to +-7.8% about the mean predicted thermal resistance at a mean temperature of 75 deg F ninety-five percent of the time for the guarded hot box and by up to +-5.6% for the calibrated hot box. Based on guarded hot plate (ASTM C 177) data for the specimen material from the National Bureau of Standards, supported by measurement from other laboratories, the reference value for the specimen material is taken as 15.94 hr-F-ft sq/Btu. The mean of the thermal resistance reported for guarded hot boxes was 15.77 hr-F-ft sq/Btu which differs by -1.07% from the reference value. The mean of the thermal resistance reported for calibrated hot boxes was 16.32 hr-F-ft sq/Btu which differs by +2.38% from the reference value. 22 refs., 5 figs., 2 tabs.
- Research Organization:
- Oak Ridge National Lab., TN (USA); New Jersey Inst. of Tech., Newark (USA). Buildings Engineering and Architectural Research Center
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6667692
- Report Number(s):
- ORNL/Sub-84-97333/2; ON: DE89004317
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320107* -- Energy Conservation
Consumption
& Utilization-- Building Systems-- (1987-)
BUILDING MATERIALS
BUILDINGS
CALIBRATION
CONSTRUCTION
DATA
DESIGN
DOUBLE ENVELOPE BUILDINGS
INFORMATION
MATERIALS
MEASURING METHODS
NUMERICAL DATA
PERFORMANCE
PERFORMANCE TESTING
PHYSICAL PROPERTIES
STANDARDS
TESTING
THERMAL CONDUCTIVITY
THERMAL INSULATION
THERMODYNAMIC PROPERTIES
320107* -- Energy Conservation
Consumption
& Utilization-- Building Systems-- (1987-)
BUILDING MATERIALS
BUILDINGS
CALIBRATION
CONSTRUCTION
DATA
DESIGN
DOUBLE ENVELOPE BUILDINGS
INFORMATION
MATERIALS
MEASURING METHODS
NUMERICAL DATA
PERFORMANCE
PERFORMANCE TESTING
PHYSICAL PROPERTIES
STANDARDS
TESTING
THERMAL CONDUCTIVITY
THERMAL INSULATION
THERMODYNAMIC PROPERTIES