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Author: Robert Zarr

Displaying records 1 to 10 of 33 records.
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1. Retrospective Analysis of NIST Standard Reference Material 1450, Fibrous Glass Board, for Thermal Insulation Measurements
Published: 8/25/2014
Authors: Robert R Zarr, Nathanael A Heckert, Stefan D Leigh
Abstract: Thermal conductivity data acquired previously for the establishment of Standard Reference Material (SRM) 1450, Fibrous Glass Board, as well as subsequent renewals 1450a, 1450b, 1450c, and 1450d are re-analyzed collectively and as individual data sets ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915101

2. Standard Reference Material 1450d, Fibrous Glass Board, for Thermal Insulation Measurements
Published: 2/4/2014
Authors: Robert R Zarr, Stefan D Leigh
Abstract: Thermal conductivity measurements at and near room temperature are presented as the basis for certified values of thermal conductivity for SRM 1450d, Fibrous Glass Board. The measurements have been conducted in accordance with a randomized full fact ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911463

3. Initial Measurement Results of the NIST 500 mm Guarded-Hot-Plate Apparatus Using Automated Computer Control
Published: 5/9/2013
Author: Robert R Zarr
Abstract: The initial thermal conductivity measurements from a guarded hot plate apparatus using multiple line-heat sources are presented for specimens of high-density molded fibrous-glass board. Measurements at ambient air pressures are in good agreement w ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908132

4. Metrological Traceability for Guarded-Hot-Plate Apparatus
Published: 5/9/2013
Author: Robert R Zarr
Abstract: An approach for establishing metrological traceability for measurement results from guarded-hot-plate apparatus consistent with policy at the National Institute of Standards and Technology (NIST) is presented. A brief example for initiating met-rolo ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907903

5. Standard Reference Materials: SRM 1453, Expanded Polystyrene Board, for Thermal Conductivity from 281 K to 313 K
Series: Special Publication (NIST SP)
Report Number: 260-175
Published: 12/21/2012
Authors: Robert R Zarr, Adam L Pintar
Abstract: Thermal conductivity measurements at and near room temperature are presented as the basis for certified values of thermal conductivity of SRM 1453, Expanded Polystyrene Board. The measurements have been conducted in accordance with a randomized ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912689

6. High-Temperature Guarded-Hot-Plate and Pipe Measurements: 2nd Operators Workshop (March 19-20, 2012) Co-sponsored by ASTM Committee C16 on Thermal Insulation
Series: Technical Note (NIST TN)
Report Number: 1764
Published: 11/21/2012
Authors: Robert R Zarr, Thomas Whitaker, Frank Tyler
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911481

7. Analysis of Thermal-Conductivity Measurement Data from International Comparison of National Laboratories
Published: 6/19/2012
Authors: Bruno Hay, Robert R Zarr, Clark Stacey, Leonel Lira Cortes, Ulf Hammerschmidt, Nikolay Sokolov, J.T. Zhang, Jean Remy Filtz
Abstract: For the first time under the auspices of the Bureau International des Poids et Mesures (BIPM), seven national metrology institutes (NMIs) participated in an international interlaboratory comparison on thermal-conductivity measurements by the guarded ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909278

8. SRM 1450d, Fibrous-Glass Board, for Thermal Conductivity from 280 K to 340 K
Series: Special Publication (NIST SP)
Report Number: 260-173
Published: 8/1/2011
Authors: Robert R Zarr, Amanda C. Harris, John F Roller, Stefan D Leigh
Abstract: Thermal conductivity measurements at and near room temperature are presented as the basis for certified values of thermal conductivity for SRM 1450d, Fibrous Glass Board. The measurements have been conducted in accordance with a randomized full fact ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908780

9. Thermal Response Simulation for Tuning PID Controllers in a 1016 mm Guarded Hot Plate Apparatus
Published: 7/1/2011
Authors: Robert R Zarr, William C. Thomas
Abstract: A mathematical model has been developed and used to simulate the controlled thermal performance of a large guarded hot-plate apparatus. The control system consists primarily of three PID controllers that regulate the output voltage of three programma ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904986

10. Uncertainty Analysis of Thermal Transmission Properties Determined by ASTM C 177
Published: 3/1/2010
Author: Robert R Zarr
Abstract: An uncertainty analysis for steady-state thermal transmission properties determined by the National Institute of Standards and Technology (NIST) 1016 mm Guarded-Hot-Plate apparatus is presented for fibrous-glass blanket and expanded polystyrene board ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901766



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