Hydrometer
notes: label: Description
content: Glass hydrometer with shot ballast, paper label marked “Actinometer 60° F.” and glass jar. An actinometer measures the intensity of radiation. In this form, designed for use by photographers, the scale indicates the number of grains of silver nitrate to an ounce of water at a particular light level.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Chemistry
creditLine: label: Credit Line
content: June W. Leonard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1991.0691.45
label: accession number
content: 1991.0691
label: catalog number
content: 1991.0691.45
objectType: label: Object Name
content: Hydrometer
physicalDescription: label: Physical Description
content: glass (overall material)
label: Physical Description
content: wood (overall material)
label: Measurements
content: overall: 14.6 cm; 5 3/4 in
label: Measurements
content: overall in case: 7 1/2 in x 2 in; 19.05 cm x 5.08 cm