Design Concepts for a New Guarded Hot Plate Apparatus for Use Over an Extended Temperature Range / DR. Flynn, RR. Zarr, MH. Hahn, WM. Healy
- Conference Author:
- Insulation Materials: Testing and Applications: 4th Volume (4th : 2002 : Charleston, South Carolina)
- Physical Description:
- 1 online resource (18 pages) : illustrations, figures, tables
- Additional Creators:
- Zarr, RR., Flynn, DR., Hahn, MH., Healy, WM., American Society for Testing and Materials, and ASTM International
- Restrictions on Access:
- Subscription required for access to full text. and License restrictions may limit access.
- The National Institute of Standards and Technology is building a new guarded hot plate apparatus (GHP) for use at temperatures from 90 to 900 K, with provision to conduct tests in various gases at controlled pressures from 0.013 Pa to 0.105 MPa (? 1.04 atm). Important features of the design of the new NIST GHP include: enclosure of the entire apparatus in a vacuum chamber; solid metal hot plates and cold surface plates to provide highly isothermal surfaces in contact with the test specimens; an integral closefitting edge guard to minimize the effects of edge heat losses or gains; connection guard blocks to minimize the effects of heat conduction along coolant lines, heater leads, thermometry wells, and sensor leads coming from the hot plate and the cold plates; provision of a system to provide a known clamping force between the specimens and the contacting hot and cold plate surfaces; provision of an accurate system for in-situ measurement of specimen thickness during a test; and the use of three long-stem standard platinum resistance thermometers to measure the average temperature of the meter plate and the two cold plates.
- Dates of Publication and/or Sequential Designation:
- Volume 2002, Issue 1426 (January 2002)
- 9780803154698 (e-ISBN), 9780803128989, and 0803128983
- Digital File Characteristics:
- text file PDF
- Bibliography Note:
- Includes bibliographical references 21.
- Other Forms:
- Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription., Full text article also available for purchase., and Also available in PDF edition.
- Reproduction Note:
- Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 2002. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
- Technical Details:
- Mode of access: World Wide Web.
- Source of Acquisition:
- ASTM International PDF Purchase price USD25.
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