ASTM C591-22
Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
- Standard No.
- ASTM C591-22
- Release Date
- 2022
- Published By
- American Society for Testing and Materials (ASTM)
- Latest
- ASTM C591-22
- Scope
- 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 (149°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 This standard addresses requirements of unfaced preformed rigid cellular polyisocyanurate thermal insulation manufactured using blowing agents with an ozone depletion potential of 0 (ODP 0). 1.5 Except 6.2 and 8.2 – 8.4, which are related to the size and shape of fabricated parts, and 16.1, which is related to the storage of fabricated parts, the requirements in this standard specification apply to the polyisocyanurate insulation in the form of buns supplied by the insulation manufacturer. 1.6 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. 1.7 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. 1.8 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. 1.9 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.
ASTM C591-22 Referenced Document
- ASTM C1045 Standard Practice for Calculating Thermal Transmission Properties Under Steady-State Conditions
- ASTM C1058/C1058M Standard Practice for Selecting Temperatures for Evaluating and Reporting Thermal Properties of Thermal Insulation*， 2023-03-01 Update
- ASTM C1114 Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Thin-Heater Apparatus
- ASTM C1303/C1303M Standard Test Method for Predicting Long-Term Thermal Resistance of Closed-Cell Foam Insulation*， 2023-11-01 Update
- ASTM C1363 Standard Test Method for the Thermal Performance of Building Assemblies by Means of a Hot Box Apparatus
- ASTM C165 Standard Test Method for Measuring Compressive Properties of Thermal Insulations
- ASTM C168 Standard Terminology Relating to Thermal Insulation
- ASTM C1763 Standard Test Method for Water Absorption by Immersion of Thermal Insulation Materials
- ASTM C177 Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot-Plate Apparatus
- ASTM C272/C272M Standard Test Method for Water Absorption of Core Materials for Sandwich Constructions
- ASTM C303 Standard Test Method for Dimensions and Density of Preformed Block and Broad-Type Thermal Insulation
- ASTM C335/C335M Standard Test Method for Steady-State Heat Transfer Properties of Pipe Insulation*， 2023-03-01 Update
- ASTM C390 Standard Criteria for Sampling and Acceptance of Preformed Thermal Insulation Lots
- ASTM C411 Standard Test Method for Hot-Surface Performance of High-Temperature Thermal Insulation
- ASTM C518 Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus
- ASTM C550 Standard Test Method for Measuring Trueness and Squareness of Rigid Block and Board Thermal Insulation
- ASTM C585 Standard Practice for Inner and Outer Diameters of Rigid Thermal Insulation for Nominal Sizes of Pipe and Tubing (NPS System)
- ASTM C871 Standard Test Methods for Chemical Analysis of Thermal Insulation Materials for Leachable Chloride, Fluoride, Silicate, and Sodium Ions
- ASTM D1621 Standard Test Method for Compressive Properties of Rigid Cellular Plastics
- ASTM D1622/D1622M Standard Test Method for Apparent Density of Rigid Cellular Plastics*， 2024-04-22 Update
- ASTM D2126 Standard Test Method for Response of Rigid Cellular Plastics to Thermal and Humid Aging
- ASTM D2856 Standard Test Method for Open-Cell Content of Rigid Cellular Plastics by the Air Pycnometer
- ASTM D6226 Standard Test Method for Open Cell Content of Rigid Cellular Plastics
- ASTM D883 Standard Terminology Relating to Plastics*， 2024-02-01 Update
- ASTM E84 Standard Test Method for Surface Burning Characteristics of Building Materials
- ASTM E96/E96M Standard Test Methods for Gravimetric Determination of Water Vapor Transmission Rate of Materials*， 2024-03-01 Update
ASTM C591-22 history
- 2022 ASTM C591-22 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
- 2021 ASTM C591-21 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
- 2020 ASTM C591-20 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
- 2019 ASTM C591-19a Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
- 2019 ASTM C591-19 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
- 2017 ASTM C591-17 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
- 2016 ASTM C591-16 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate
Thermal Insulation - 2015 ASTM C591-15 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate
Thermal Insulation - 2013 ASTM C591-13 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
- 2012 ASTM C591-12b Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate
Thermal Insulation - 2012 ASTM C591-12a Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate
Thermal Insulation - 2012 ASTM C591-12 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate
Thermal Insulation - 2011 ASTM C591-11 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
- 2009 ASTM C591-09 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
- 2008 ASTM C591-08a Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
- 2008 ASTM C591-08 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
- 2007 ASTM C591-07 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
- 2005 ASTM C591-05 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
- 2001 ASTM C591-01 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
- 2001 ASTM C591-00 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
- 1985 ASTM C591-85 Standard Specification for Unfaced Preformed Rigid Cellular Polyurethane Thermal Insulation
