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Description of ASTM-E2923 2024ASTM E2923-24Redline Standard: Standard Practice for Longevity Assessment of Firestop Materials Using Differential Scanning CalorimetryASTM E2923Scope 1.1 This practice covers a standardized procedure for quantitatively assessing the longevity of materials used in firestop systems, by the use of data obtained from differential scanning calorimetry. 1.2 This practice is intended to differentiate firestop materials that are expected to maintain performance characteristics over time from those that are expected to degrade in performance characteristics over time. DSC experimental curve evaluation can also deliver indifferent results, where an interpretation of sample properties is not possible without additional testing using conventional durability testing. It evaluates the extent of chemical reactions that will occur within the firestop material under specified conditions of temperature and humidity. This practice does not measure longevity under specific severe environmental conditions or building operation that might be experienced by an individual firestop system. 1.3 This practice is intended to be used to validate an expectation of longevity for materials that are used within a firestopping system. The practice is not intended to be used to gauge the performance of artificially aged materials in a firestop test. The method described herein cannot be applied as a preconditioning of a material meant for a firestop test due to the size limitation of the test specimen and the nature of the test itself. 1.4 This practice is intended to evaluate the following types of materials used in through-penetration fire stops: 1.4.1 Endothermic, 1.4.2 Intumescent, 1.4.3 Insulation, 1.4.4 Ablatives, and 1.4.5 Subliming. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Some specific hazards are given in Section 8 on Hazards. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. Keywords Borchardt and Daniels kinetics; differential scanning calorimetry (DSC); fire stop; firestop; longevity; ICS Code ICS Number Code 13.220.20 (Fire protection) DOI: 10.1520/E2923-24 This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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