ASTM D3832 - 79(2017)
Standard Specification for Rubber Seals Contacting Liquids in Solar Energy Systems
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Abstract
This specification covers the general requirements for materials used in preformed rubber seals that contact the circulating liquid in solar energy systems. Rubber seal can be classified into types, grades and classes. It has two kinds according to what climate they should be used: Type C which is intended for use in cold climates and Type W which is intended for use in warm climates. Its grade designations represent differing degrees of hardness such as Grade 3, Grade 4, Grade 5, Grade 6, Grade 7 and Grade 8. As for the classes, it should be determined into 3 kinds. Class A for seals used with aqueous liquid at a certain maximum service temperature. Class AT for seals used with aqueous liquids at an above maximum service temperature and class N for use with nonaqueous liquids. Different tests shall be conducted in order to determine the following properties of rubber seals in liquid heat-transport systems: compression, resistance to heating, hardness, ultimate elongation, volume, resistance to ozone, resistance to low temperature, and resistance to liquid.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1. Scope
1.1 This specification covers the general requirements for materials used in preformed rubber seals that contact the circulating liquid in solar energy systems. Particular applications may necessitate other requirements that would take precedence over these requirements when specified.
1.2 This specification does not include requirements pertaining to the design, fabrication, or installation of the seals.
1.3 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D395 Test Methods for Rubber PropertyCompression Set
D412 Test Methods for Vulcanized Rubber and Thermoplastic ElastomersTension
D471 Test Method for Rubber PropertyEffect of Liquids
D1149 Test Methods for Rubber DeteriorationCracking in an Ozone Controlled Environment
D1229 Test Method for Rubber PropertyCompression Set at Low Temperatures
D1349 Practice for Rubber--Standard Conditions for Testing
D1415 Test Method for Rubber Property--International Hardness
D1566 Terminology Relating to Rubber
D2137 Test Methods for Rubber PropertyBrittleness Point of Flexible Polymers and Coated Fabrics
D3182 Practice for RubberMaterials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
D3183 Practice for RubberPreparation of Pieces for Test Purposes from Products
Other Standards
RMA Handbook—Rubber Products: Molded, ExtruICS Code
ICS Number Code 21.140 (Seals, glands)
UNSPSC Code
UNSPSC Code 31410000(Seals)
Referencing This Standard
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DOI: 10.1520/D3832-79R17
Citation Format
ASTM D3832-79(2017), Standard Specification for Rubber Seals Contacting Liquids in Solar Energy Systems, ASTM International, West Conshohocken, PA, 2017, www.astm.org
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