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Engineering Laboratory

Building Energy & Environment Division

Photograph Gallery of NIST Guarded-Hot-Plate Apparatus

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The following photographs will give you a perspective on the development of the Guarded-Hot-Plate apparatus at NIST.

black and white photo of a boxlid apparatus
Final version of NIST guarded-hot-plate apparatus built in 1929 by Van Dusen.
Credit: NIST
Three men sit at a dashboard
Chock Siu (sitting), Frank Powell (left), and Tom Watson in front of 1929 NIST guarded-hot-plate apparatus (1973).
Credit: NIST
diagram of a Robinson Line-heat-source guarded-hot-plate apparatus
Prototype Robinson Line-heat-source guarded-hot-plate apparatus (1978).
Credit: NIST
Two men with a large circular object. black & white
The circular "hot plate" being installed by Research Associate Dave Ober (1) and mechanical engineer Mahn Hee Hahn.
Credit: NIST
two men working on a 1000-mm guarded hot plate. black & white.
Technicians John McAuley (1) and Rick Petersen instrument the new 1000-mm guarded hot plate.
Credit: NIST
sketch of a NIST one-meter line-heat-source guarded-hot-plate apparatus
NIST one-meter line-heat-source guarded-hot-plate apparatus (198).
Credit: NIST

 

Buildings and Construction
Created July 26, 2011, Updated January 30, 2026
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