This standard is issued under the fixed designation C ; the number immediately 1 This test method is under the jurisdiction of ASTM Committee C- 16 on. ASTM C () Standard Test Method for Thermal Performance of Building Materials and Envelope Assemblies by Means of a Hot Box Apparatus. Annual. Our calibrated hot box is one of the largest in the country accepting test assemblies up to 9’x16′. Its design allows any orientation from fully vertical to fully .
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Home Innovation ASTM C Hot Box | Home Innovation Research Labs
However, larger hot boxes have been used to characterize projecting skylights and attic sections. Reflective insulation technology is now being combined with other energy conserving technologies to optimize overall thermal performance. Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
When constructed to measure heat transfer in the vertical direction, the hot box is used for testing roof, ceiling, floor, and other horizontal structures. A Hot Box is a specially-calibrated instrument in the Home Innovation building product testing lab designed to measure heat flow for large building cc1363. This benchmarking provides aztm confidence that any extraneous heat flows can be eliminated or quantified with sufficient accuracy to be a minor factor of the overall uncertainty.
Other ASTM standards such as Test Methods C and C provide data on homogeneous specimens bounded by temperature controlled flat impervious plates.
Large-Scale Hot Box
The general testing procedures for these cases are described in Annex A Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. Additional characterization is required to insure that all aspects of the heat asrm and storage are accounted for during the test.
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In addition, there would be no temperature differences that would drive heat across the boundary of the metering chamber walls. Data Providing materials insight through custom data and reports. Practice C may be used as a guide for test specimen conditioning. Code officials and designers want R-value data they can count on, but without testing, the R-value of the assembled component is unknown.
The general testing procedures for these cases are described in Annex A See Annex A8 for the general method. Data obtained by the use of this test method is representative of the specimen performance only for the conditions of the test. Historical Version s – view previous versions of standard.
Note that the use of Test Method C or similar apparatus creates additional uncertainty since those devices are calibrated using transfer standards or standard reference materials. Many high performance wall systems now also have a layer of rigid foam. However, larger hot boxes have been used to characterize projecting skylights and attic sections. To gain this final confidence in the test result, it is necessary to benchmark the overall result of the hot box apparatus by performing measurements on specimens having known heat transfer values and comparing those results to the expected values.
If the document is revised or amended, you will be notified by email. This test is applicable to large assemblies, such as walls and roofs. The general principles of the hot box method can be used to construct an apparatus to measure the heat flow through industrial systems at elevated aetm. Detailed designs conforming to this standard are not given but must be developed within the constraints of the general requirements.
If no applicable standard exists, sound engineering judgment that reflects accepted heat transfer principles must be used and documented. Test apparatus designed and operated previously under Test Methods C and C will require slight modifications aastm the calibration and operational procedures to meet the requirements of Test Method C Special characterization procedures are required for these tests.
Reflective technology increases the overall thermal resistance of the building enclosure when used to insulate poured concrete structures. By running multiple conditions, we develop a calibration curve and use it to provide accurate results. The equipment performing these measurements requires calibration to c3163 that the data awtm accurate.
For vertical specimens with air spaces that significantly affect thermal performance, the metering chamber dimension shall match the effective construction height. Any exterior wall or roof assembly, including steel stud wall systems, insulated concrete forms, tilt-up concrete walls, and insulated metal panels Test Procedure: