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Doplňujúce informácie

ASTM D3832-79(2022)

Standard Specification for Rubber Seals Contacting Liquids in Solar Energy Systems

NORMA vydaná dňa 1.10.2022

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Cena	54.60 € bez DPH
54.60 €

Informácie o norme:

Označenie normy: ASTM D3832-79(2022)
Dátum vydania normy: 1.10.2022
Kód tovaru: NS-1088706
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM

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Anotácia textu normy ASTM D3832-79(2022) :

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.

Keywords:

liquids, rubber seals, solar energy systems,, ICS Number Code 21.140 (Seals, glands)

Doplňujúce informácie

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

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
D471-16a(2021)	Standard Test Method for Rubber Property—Effect of Liquids (Includes all amendments and changes 6/25/2021).
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
D1415-18	Standard Test Method for Rubber Property´International Hardness
D1349-14(2019)	Standard Practice for Rubber´Standard Conditions for Testing
RMA Handbook—Rubber Products: Molded, Extruded, Lathe Cut, and Cellular Available from the Rubber Manufacturers Association (RMA), 444 Madison Ave., New York, NY 10022.
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
D1229-03(2019)	Standard Test Method for Rubber Property´Compression Set at Low Temperatures
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).

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