Guarded Hot Box


This seems to be a guarded hot box for determining the insulating properties of various materials. A brass tag on the front reads "JOHNS MANVILLE / INSULATION." Inside are two metal vials, one with a "GAERTNER" inscription. The Physics Department at Rutgers University donated this to the Museum in 1966.

Ref: Standard Test Method for Thermal Performance of Building Materials and Envelope Assemblies by Means of a Hot Box Apparatus (A.S.T.M.).

Robert R. Zarr, “A History of Testing Heat Insulators at the National Institute of Standards and Technology,” ASHRAE Transactions 107 (2001).

Location: Currently not on view

See more items in: Medicine and Science: Chemistry


Exhibition Location:

Credit Line: Gift of Rutgers University Department of Physics

Data Source: National Museum of American History

Id Number: CH.327639Catalog Number: 327639Accession Number: 268279

Object Name: insulated box

Measurements: lining: 23.2 cm x 12.7 cm x 14.6 cm; 9 1/8 in x 5 in x 5 3/4 inbox: 37.5 cm x 23.2 cm x 20.3 cm; 14 3/4 in x 9 1/8 in x 8 inoverall in box: 8 in x 15 in x 9 in; 20.32 cm x 38.1 cm x 22.86 cm


Record Id: nmah_2530

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