Last page update: May 10, 2021
The current edition of ANSI/CRRC S100 - “Standard Test Methods for Determining Radiative Properties of Materials” was approved by the American National Standards Institute (ANSI) on March 29, 2021.
Recent Update of ANSI/CRRC S100 Standard
The ANSI/CRRC S100 standard was recently revised in accordance with CRRC and ANSI requirements. The revisions to the standard derived from the CRRC, public comments, and ballot comments that were evaluated and approved by the CRRC Consensus Body during the public review process held between 2019-2020 (see Key Milestones below). The CRRC Consensus Body approved the revised draft standard on June 30, 2020, followed by approval by the CRRC Board of Directors on September 24, 2020 and ANSI on March 29, 2021.
Consensus Body Balloting to Approve Proposed Revisions: May 10, 2019 - June 9, 2019
First Public Comment Period on Approved Proposed Revisions: June 14, 2019 - July 29, 2019
Consensus Body Recirculation Balloting to Approve Proposed Revisions: August 13, 2019 - August 27, 2019
Second Public Comment Period on Approved Proposed Revisions: September 27, 2019 - November 11, 2019
Consensus Body Recirculation Balloting to Approve Proposed Revisions: January 20, 2020 - February 3, 2020
Consensus Body Recirculation of Unresolved Objection: March 2, 2020 - March 16, 2020
Third Public Comment Period on Approved Proposed Revisions: April 10, 2020 - May 26, 2020
Consensus Body Final Balloting to Approve Revised Standard: June 1, 2020 - June 30, 2020
Procedural Appeals Period: August 3, 2020 - September 2, 2020
CRRC Board of Directors Approval of Revised Standard: September 24, 2020
ANSI Approval of Revised Standard: March 29, 2021
The CRRC became an ANSI-Accredited Standards Developer Organization in 2007. After a three-year standards development process, the first edition of “ANSI/CRRC S100 - Standard Test Methods for Determining Radiative Properties of Materials” (formerly CRRC-1 Standard) was approved on November 16, 2010. The standard is currently in its fourth edition (approved by ANSI on March 29, 2021).
The ANSI Essential Requirements and the CRRC's accredited procedures specify that the process for standards development must be a collaborative, balanced, and consensus-based approval process. As such, every few years the standard must go through a public review process. As part of this process, consensus must be reached by representatives from materially-affected and interested parties. The ANSI/CRRC S100 standard was developed with input from the public and the CRRC Consensus Body, a balanced group representing diverse interests, ensuring that all aspects of the standard are considered.
The ANSI/CRRC S100 standard covers test specimen preparation and test methods for measuring the initial and aged radiative properties of roofing products. The standard is referenced by building codes and rating programs worldwide in order to measure the initial and aged solar reflectance and thermal emittance of roofing products.