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ASTM C591-08a
Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation (Includes all amendments And changes 12/31/2010).
Automaticky preložený názov:
Štandardné špecifikácie pre unfaced preformovaných Pevný Cellular polyisokyanurátových tepelnou izoláciou
NORMA vydaná dňa 1.12.2008
Informácie o norme:
Označenie normy: ASTM C591-08a
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.12.2008
Kód tovaru: NS-14150
Počet strán: 6
Približná hmotnosť: 18 g (0.04 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Anotácia textu normy ASTM C591-08a :
Keywords:
cellular plastic, polyisocyanurate, polyurethane modified polyisocyanurate, thermal insulation, Cellular thermal insulation--specifications, Polyisocyanurate insulation, Preformed thermal insulation--specifications, Rigid thermal insulation--specifications, Thermal insulating materials--specifications, Unfaced thermal insulation--specifications
Doplňujúce informácie
| 1. Scope | ||||||||||||||||||||||||||||||||||||||||||||||||||
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1.1 This specification covers the types, physical properties, and dimensions of unfaced, preformed rigid cellular polyisocyanurate plastic material intended for use as thermal insulation on surfaces from − 297°F (−183°C) to 300°F (150°C). For specific applications, the actual temperature limits shall be agreed upon by the manufacturer and purchaser. 1.2 This specification only covers “polyurethane modified polyisocyanurate” thermal insulation which is commonly referred to as “polyisocyanurate” thermal insulation. This standard does not encompass all polyurethane modified materials. Polyurethane modified polyisocyanurate and other polyurethane materials are similar, but the materials will perform differently under some service conditions. 1.3 This standard is designed as a material specification, not a design document. Physical property requirements vary by application and temperature. At temperatures below - 70°F (- 51°C) the physical properties of the polyisocyanurate insulation at the service temperature are of particular importance. Below - 70°F (- 51°C) the manufacturer and the purchaser must agree on what additional cold temperature performance properties are required to determine if the material can function adequately for the particular application. 1.4 Tables in the Annex A1 address requirements of unfaced preformed rigid cellular polyisocyanurate thermal insulation manufactured with HCFC blowing agent. 1.5 When adopted by an authority having jurisdiction, codes that address fire properties in many applications regulate the use of the thermal insulation materials covered by this specification. Fire properties are controlled by job, project, or other specifications where codes or government regulations do not apply. 1.6 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. 1.7 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 and health practices and determine the applicability of regulatory limitations prior to use. |
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| 2. Referenced Documents | ||||||||||||||||||||||||||||||||||||||||||||||||||
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