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ASTM C1668-19
Standard Specification for Externally Applied Reflective Insulation Systems on Rigid Duct in Heating, Ventilation, and Air Conditioning (HVAC) Systems
NORMA vydaná dňa 15.4.2019
Informácie o norme:
Označenie normy: ASTM C1668-19
Poznámka: NEPLATNÁ
Dátum vydania normy: 15.4.2019
Kód tovaru: NS-950743
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM C1668-19 :
Keywords:
duct insulation, emittance, HVAC (heating, ventilation, air-conditioning), reflective air spaces, reflective insulation, reflective insulation spacers, reflective insulation system, R-value, thermal resistance,, ICS Number Code 91.140.30 (Ventilation and air-conditioning systems)
Doplňujúce informácie
| 1. Scope | ||||||||||||||||||||||||
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1.1 This specification covers the requirements and physical properties of reflective insulation systems applied externally to Rigid Heating, Ventilation, and Air Conditioning (HVAC) duct systems operating at or below 250°F (121.1°C). These insulation systems consist of one or more low-emittance surfaces, such as metallic foil or metallic deposits, mounted on substrates to produce reflective air spaces. Reflective insulation systems derive thermal performance from surfaces with an emittance of no greater than 0.1 facing enclosed air spaces. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 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. 1.4 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. |
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| 2. Referenced Documents | ||||||||||||||||||||||||
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