ASTM D3771-15(2022)

Standard Specification for Rubber Seals Used in Concentrating Solar Collectors

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STANDARD published on 1.10.2022

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The information about the standard:

Designation standards: ASTM D3771-15(2022)
Publication date standards: 1.10.2022
SKU: NS-1088705
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Seals, glands

Annotation of standard text ASTM D3771-15(2022) :

This specification covers the general requirements for materials used in rubber seals of concentrating solar collectors. Design requirement pertains only to permissible deflections of the rubber during thermal expansion or contraction of the seal in use and the tolerances in dimensions of molded and extruded seals. The materials shall be classified according to usage: Type C and Type W; according to degrees of hardness: Grade 2; 3; 4; 5; 6; 7; and 8. The seals shall be classified as: Class PS and Class SC. Desert outdoor exposure and xenon arc laboratory exposure shall be performed to determine the resistance to solar radiation. The following test methods shall be performed: ultimate elongation; compression set; resistance to heating; resistance to ozone; resistance to low temperature; and adhesion loss.

Keywords:
concentrating solar collectors, preformed seals, rubber, sealing compounds ,, ICS Number Code 21.140 (Seals, glands)

Additional information

1. Scope

1.1?This specification covers the general requirements for materials used in rubber seals of concentrating solar collectors. Particular applications may necessitate other requirements that would take precedence over these requirements when specified.

1.2?Design requirement pertains only to permissible deflections of the rubber during thermal expansion or contraction of the seal in use and the tolerances in dimensions of molded and extruded seals.

1.3?This specification does not include requirements pertaining to the fabrication or installation of the seals.

1.4?The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5?The following safety hazards caveat pertains only to the test methods portion, Section 9, of this specification: 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?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.

2. Referenced Documents

G7-05	Standard Practice for Atmospheric Environmental Exposure Testing of Nonmetallic Materials
D1415-18	Standard Test Method for Rubber Property´International Hardness
D1566-21a	Standard Terminology Relating to Rubber (Includes all amendments and changes 11/10/2021).
D1149-18	Standard Test Methods for Rubber Deterioration´Cracking in an Ozone Controlled Environment
D865-11(2018)	Standard Test Method for Rubber´Deterioration by Heating in Air (Test Tube Enclosure)
D412-16(2021)	Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
D2137-11(2018)	Standard Test Methods for Rubber Property´Brittleness Point of Flexible Polymers and Coated Fabrics
D2240-15(2021)	Standard Test Method for Rubber Property—Durometer Hardness
G155-21	Standard Practice for Operating Xenon Arc Lamp Apparatus for Exposure of Materials
D3182-21a	Standard Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets (Includes all amendments and changes 11/12/2021).
D3183-10(2019)	Standard Practice for Rubber´Preparation of Pieces for Test Purposes from Products
D395-18	Standard Test Methods for Rubber Property´Compression Set
RMA Handbook—	Rubber Products: Molded, Extruded, Lathe Cut, and Cellular Available from the Rubber Manufacturers Association (RMA), 444 Madison Ave., New York, NY 10022.
C719-22	Standard Test Method for Adhesion and Cohesion of Elastomeric Joint Sealants Under Cyclic Movement (Hockman Cycle)
C717-19	Standard Terminology of Building Seals and Sealants
C661-15(2022)	Standard Test Method for Indentation Hardness of Elastomeric-Type Sealants by Means of a Durometer
D1229-03(2019)	Standard Test Method for Rubber Property´Compression Set at Low Temperatures
D1349-14(2019)	Standard Practice for Rubber´Standard Conditions for Testing
G151-19	Standard Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources

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