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Description of ASTM-F3340 2022ASTM F3340-22Redline Standard: Standard Test Method for Thermal Resistance of Camping Mattresses Using a Guarded Hot Plate ApparatusASTM F3340Scope 1.1 This test method covers the measurement of the thermal resistance of camping mattresses in conditions of steady-state heat transfer, using a two-plate apparatus. The camping mattress is held under constant compressive force between a guarded hot plate and a cold plate. The primary heat transfer for this method is one dimensional, vertically through the camping mattress thickness. As such this measured thermal insulation value is a repeatable comparative measurement. However, it needs to be noted that this value will not always correlate to actual insulation performance as it is feasible that real-world heat transfer will differ slightly because of additional heat losses possibly involved (for example, edge heat loss, uncovered surface heat loss, compression rate changes or posture changes during sleep). 1.2 This test method is applicable to all types of camping mattresses (for example, inflating air mattress with or without insulation, inflating air mattress with reflective materials, self-inflating open cell foam mattress with or without coring, closed cell non-inflatable foam mats). Auxiliary insulation of any type shall be excluded in the measurement. Auxiliary insulations are any type of material removable from the mattress (for example, sleeping bags, mattress covers). 1.3 The sample thickness shall not exceed the limit determined by the hot plate dimensions stated in 7.1.2. 1.4 Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard. 1.5 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. 1.6 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 camping mattress; guarded hot plate apparatus; R-value; sleeping mats; sleeping pads; thermal resistance; ICS Code ICS Number Code 17.200.10 (Heat. Calorimetry) DOI: 10.1520/F3340-22 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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