1.1 This specification covers structural insulating board for general thermal insulating, fire-resistive, and marine bulkhead applications. The rigid, preformed structural insulating board is for use at temperatures up to 1700°F (927°C). For specific applications, the actual temperature limit shall be agreed upon between the manufacturer and the purchaser.
1.2 The structural insulating board maintains its structural integrity after immersion in water.
1.3 Rapid cycling over a wide temperature range is not recommended because of potential damage due to thermal shock.
1.4 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.
1.5 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.
1.6 When the installation or use of thermal insulation materials, accessories and systems, may pose safety or health problems, the manufacturer shall provide the user appropriate current information regarding any known problems associated with the recommended use of the company’s products, and shall also recommend protective measures to be employed in their safe utilization. The user shall establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.
1.7 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 C656-17 Referenced Document
ASTM C1045 Standard Practice for Calculating Thermal Transmission Properties Under Steady-State Conditions
ASTM C1058 Standard Practice for Selecting Temperatures for Evaluating and Reporting Thermal Properties of Thermal Insulation
ASTM C165 Standard Test Method for Measuring Compressive Properties of Thermal Insulations
ASTM C168 Standard Terminology Relating to Thermal Insulation*, 2022-05-01 Update
ASTM C177 Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot-Plate Apparatus
ASTM C203 Standard Test Methods for Breaking Load and Flexural Properties of Block-Type Thermal Insulation
ASTM C303 Standard Test Method for Dimensions and Density of Preformed Block and Broad-Type Thermal Insulation
ASTM C356 Standard Test Method for Linear Shrinkage of Preformed High-Temperature Thermal Insulation Subjected to Soaking Heat
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 C447 Standard Practice for Estimating the Maximum Use Temperature of Thermal Insulations
ASTM C518 Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus
ASTM D1037 Standard Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel Materials
ASTM E136 Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750oC
ASTM C656-17 history
2023ASTM C656-17(2023) Standard Specification for Structural Insulating Board, Calcium Silicate
2017ASTM C656-17 Standard Specification for Structural Insulating Board, Calcium Silicate
2007ASTM C656-07(2013) Standard Specification for Structural Insulating Board, Calcium Silicate
2007ASTM C656-07 Standard Specification for Structural Insulating Board, Calcium Silicate
1994ASTM C656-94a(2001) Standard Specification for Structural Insulating Board, Calcium Silicate
2001ASTM C656-94a Standard Specification for Structural Insulating Board, Calcium Silicate