ASTM C1676 - 08

    Standard Specification for Microporous Thermal Insulation

    Active Standard ASTM C1676 | Developed by Subcommittee: C16.20

    Book of Standards Volume: 04.06


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    ASTM C1676

    1. Scope

    1.1 This specification covers the composition, physical properties, and product forms of microporous thermal insulation for use on surfaces at temperatures from 80 ˚°C (176 °F) up to 1150 ˚°C (2102 °F), unless otherwise agreed upon by the manufacturer and purchaser.

    1.2 This specification only covers microporous thermal insulation comprising compacted powder, fibers and opacifiers.

    1.3 The values stated in SI units are to be regarded as the standard. The inch-pound equivalents of SI units, given in parentheses, are given for information only and are only approximate.

    1.4 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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    C165 Test Method for Measuring Compressive Properties of Thermal Insulations

    C168 Terminology Relating to Thermal Insulation

    C177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot-Plate Apparatus

    C201 Test Method for Thermal Conductivity of Refractories

    C302 Test Method for Density and Dimensions of Preformed Pipe-Covering-Type Thermal Insulation

    C303 Test Method for Dimensions and Density of Preformed Block and Board-Type Thermal Insulation

    C335 Test Method for Steady-State Heat Transfer Properties of Pipe Insulation

    C356 Test Method for Linear Shrinkage of Preformed High-Temperature Thermal Insulation Subjected to Soaking Heat

    C390 Practice for Sampling and Acceptance of Thermal Insulation Lots

    C518 Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus

    C585 Practice for Inner and Outer Diameters of Thermal Insulation for Nominal Sizes of Pipe and Tubing

    C665 Specification for Mineral-Fiber Blanket Thermal Insulation for Light Frame Construction and Manufactured Housing

    C795 Specification for Thermal Insulation for Use in Contact with Austenitic Stainless Steel

    C1045 Practice for Calculating Thermal Transmission Properties Under Steady-State Conditions

    C1104/C1104M Test Method for Determining the Water Vapor Sorption of Unfaced Mineral Fiber Insulation

    E84 Test Method for Surface Burning Characteristics of Building Materials


    ICS Code

    ICS Number Code 91.100.60 (Thermal and sound insulating materials)

    UNSPSC Code

    UNSPSC Code 30141500(Thermal insulation)


    DOI: 10.1520/C1676-08

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    ASTM C1676

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