Guarded Hot Box
notes: label: Description
content: 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.
label: Description
content: Ref: <i>Standard Test Method for Thermal Performance of Building Materials and Envelope Assemblies by Means of a Hot Box Apparatus</i> (A.S.T.M.).
label: Description
content: Robert R. Zarr, “A History of Testing Heat Insulators at the National Institute of Standards and Technology,” <i>ASHRAE Transactions</i> 107 (2001).
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Chemistry
creditLine: label: Credit Line
content: Gift of Rutgers University Department of Physics
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: CH.327639
label: catalog number
content: 327639
label: accession number
content: 268279
objectType: label: Object Name
content: insulated box
physicalDescription: label: Measurements
content: lining: 23.2 cm x 12.7 cm x 14.6 cm; 9 1/8 in x 5 in x 5 3/4 in
label: Measurements
content: box: 37.5 cm x 23.2 cm x 20.3 cm; 14 3/4 in x 9 1/8 in x 8 in
label: Measurements
content: overall in box: 8 in x 15 in x 9 in; 20.32 cm x 38.1 cm x 22.86 cm