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Thermal Property Standards

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Thermal Conductivity Suite Research-Grade Test Materials (RGTMs)

NIST Interlaboratory Study 500102

NIST Thermal Conductivity Suite Research-Grade Test Materials (RGTMs) are provided on a collaborative basis for recipients to contribute thermal property data for Interlaboratory Study 500102. The Interlaboratory Study will provide insights into measurement consensus, assess the agreement between different thermal measurement techniques, and evaluate the potential fitness of purpose as reference materials. Ultimately, Study 500102 will inform the future development of thermal conductivity reference materials, enabling the reliable interlaboratory comparison of data and accelerating the commercialization of materials and devices that rely on critical thermal property measurements. These materials were selected to span the materials and property value ranges relevant to the semiconductor industry using the results from a thermal community survey, thermal measurement vendor instrument specifications, and discussions with technical experts. Every effort was made to achieve maximum compatibility with the diversity of both commercially available and home-built measurement instrumentation, methodologies, and sample requirements. 

Study 500102 Packaging
 

 

RGTM 10258 (Fused Silica)
RGTM 10259 (Quartz) 
RGTM 10260 (Sapphire)
RGTM 10261 (Silicon) 
RGTM 10262 (Silicon Carbide)

 

 

Order from the NIST Online Store (Coming Soon!)

 

Thermal Conductivity Suite Data Submission Guide

Download Data Template

Data Submission Portal

 

Questions & Answers

Is there a fee to order the Thermal Conductivity Suite RGTMs?

There is no fee to order the RGTMs but customers will be charged for shipping. If you order an RGTM, it is expected that you contribute data to the Interlaboratory Study (NIST Study Number 500102). There are a limited number of RGTM units and the goal is to maximize the number of collected datasets. 

For domestic shipments, the shipping cost is $15 UPS Ground or $20 FedEx overnight.

For international shipments, it’s $60 FedEx International Priority or $70 UPS Worldwide.

Customers can also choose to provide their FedEx or UPS shipping accounts.

Can I order more than one Thermal Conductivity Suite?

There is a limit of 2 per customer. For customers who provide data from multiple measurement techniques that require transducers or patterned depositions, additional units can be considered upon reasonable request through the order website.  

How do I submit data for multiple measurement techniques using the same RGTMs?

Recipients should initiate separate Form submissions for each measurement technique, even if data for all five RGTMs is not included in each submission. Please ensure that data is uploaded into the correct folder that is associated with the Data Collection Form. A unique folder will be created for each Form submission, all linked to your Box account. You can enter the same serial numbers included in your suite for multiple submissions. 

Do I have to use the data template?

A data template file that includes a separate tab for each of the 5 RGTMs is provided in the collaborated Box folder. Using this template will significantly help us to analyze the collective response data.

How long do I have to submit data?

Data shall be uploaded no later than 30 September 2026 to be included in the Interlaboratory Study. After submitting the Data Collection Form, you will have access to your collaborated Box folder for 30 days.  

Do I need to measure and submit data for all five materials?

You may contribute thermal property data for any and all RGTMs that you are able to measure.

Do I need to include temperature dependent data?

You may contribute thermal property data in any temperature range you are able to measure provided that you include the temperature for each measured thermal property value. 

What heat capacity values should I use?

You tell us! Some recipients may directly measure heat capacity or extract the values as fitted parameters, while others will use volumetric heat capacity values from literature as inputs into their thermal analysis. Columns are included in the data template file to record these values and the Data Submission Form will record the provenance of these heat capacity values. 

Electronics, Semiconductors, Materials, Materials characterization, Thermal properties, Metrology, Physics, Standards and Reference materials

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Created February 17, 2026, Updated April 20, 2026
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