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ASTM C591-05
Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
Automaticky přeložený název:
Standardní specifikace pro unfaced preformovaných Pevný Cellular polyisokyanurátových tepelnou izolací
NORMA vydána dne 1.12.2005
Informace o normě:
Označení normy: ASTM C591-05
Poznámka: NEPLATNÁ
Datum vydání normy: 1.12.2005
Kód zboží: NS-14147
Počet stran: 6
Přibližná hmotnost: 18 g (0.04 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM C591-05 :
Keywords:
cellular plastic, polyisocyanurate, polyurethane modified polyisocyanurate, thermal insulation
Doplňující informace
| 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 (150z73176;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, may be 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 The use of thermal insulation material covered by this specification may be regulated by building codes that address fire performance. 1.6 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only and may be approximate. 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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