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Norm

ASTM C 591a

Ausgabedatum: 2008

Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation(2. revision 2008)

1.1 This specification covers the types, physical properties, and dimensions of unfaced, preformed rigid cellular polyisocyanurate plastic material intended for use as th...
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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 ....(abbreviated)
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Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
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ASTM C 591
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ASTM C 591
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ASTM C 591
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Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate<brk/>Thermal Insulatio...
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ASTM C 591
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Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate<brk/> Thermal Insulat...
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ASTM C 591a
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Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation(2. r...
Norm
ASTM C 591
2005
Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
Norm
ASTM C 591
2007
Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
Norm
ASTM C 591
2008
Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
Norm
Historie aufklappen
Norm
ASTM C 591
Ausgabedatum : 2009
Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
Norm
ASTM C 591a
Ausgabedatum : 2019 11 01
Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation