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Standard Specification for Perlite Thermal Insulation Board (Includes all amendments and changes 4/4/2022).
Name übersetzen
NORM herausgegeben am 1.3.2022
Bezeichnung normen: ASTM C728-17a(2022)
Ausgabedatum normen: 1.3.2022
SKU: NS-1052961
Zahl der Seiten: 3
Gewicht ca.: 9 g (0.02 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
This specification covers the composition and physical properties for perlite thermal insulation board used principally above structural roof decks and as a base for built-up, modified, and elastomeric membrane roofing in building construction. Perlite thermal insulation board is classified as follows: type 1 - roof insulation board, and type 2 - roof cover/recover board. The basic material of the insulation board shall be perlite expanded by the application of heat to form glassy, cellular aggregates. The finished board may be either single-ply or multiple-ply. Perlite thermal insulation boards shall conform to the thermal resistance prescribed. The thermal resistance, compressive strength, tensile strength, flame speed classification, and water absorption shall be tested to meet the requirements prescribed.
Keywords:
cover/recover board, laminated rigid foam board, perlite, perlite thermal insulation board, roof insulation, thermal insulation,, ICS Number Code 91.100.60 (Thermal and sound insulating materials)
1. Scope | ||||||||||||||||||||
1.1?This specification covers the composition and physical properties for perlite thermal insulation board used principally above structural roof decks and as a base for built-up, modified, and elastomeric membrane roofing in building construction. 1.2?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. 1.3?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. 1.4?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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5?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. |
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