Abstract

This specification covers the general requirements for materials used in rubber seals of flat-plate solar collectors, except vertically mounted passive collectors. Particular applications may necessitate other requirements that would take precedence over these requirements when specified. The rubber seals are classified into types, grades, and classes: type C - intended for use in cold climates, and type W - intended for use in warm climates; grades 2, 3, 4, 5, 6, 7, and 8 that differ in hardness properties; class PS - preformed rubber seal, and class SC - sealing compound. Seals shall be rubber vulcanizates conforming to the requirements prescribed. The adhesion, volatiles lost, and volatiles condensable shall be tested to meet the requirements prescribed.

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 rubber seals of flat-plate solar collectors, except vertically mounted passive collectors. Particular applications may necessitate other requirements that would take precedence over these requirements when specified.

1.2 The 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.

Note 1Practices G151 and G155 are performance-based practices that replace Practice cited in previous versions of D3667. Practice described very specific designs for devices used for xenon arc exposure. The apparatus described in Practice is covered by the practices that replace it.

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 Section 9, Test Methods, 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 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

C661 Test Method for Indentation Hardness of Elastomeric-Type Sealants by Means of a Durometer

C717 Terminology of Building Seals and Sealants

C719 Test Method for Adhesion and Cohesion of Elastomeric Joint Sealants Under Cyclic Movement (Hockman Cycle)

D395 Test Methods for Rubber Property--Compression Set

D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers--Tension

D865 Test Method for Rubber--Deterioration by Heating in Air (Test Tube Enclosure)

D1149 Test Methods for Rubber Deterioration--Cracking in an Ozone Controlled Environment

D1229 Test Method for Rubber Property--Compression Set at Low Temperatures

D1349 Practice for Rubber--Standard Temperatures for Testing

D1415 Test Method for Rubber Property--International Hardness

D1566 Terminology Relating to Rubber

D2137 Test Methods for Rubber Property--Brittleness Point of Flexible Polymers and Coated Fabrics

D2240 Test Method for Rubber Property--Durometer Hardness

D3182 Practice for Rubber--Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets

D3183 Practice for Rubber--Preparation of Pieces for Test Purposes from Products

G7 Practice for Atmospheric Environmental Exposure Testing of Nonmetallic Materials

G26 Practice for Operating Light-Exposure Apparatus (Xenon-Arc Type) With and Without Water for Exposure of Nonmetallic Materials (Discontinued 2001)

G151 Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources

G155 Practice for Operating Xenon Arc Light Apparatus for Exposure of Non-Metallic Materials

Other Standards

Keywords

flat-plate solar collectors; preformed seals; rubber; sealing compounds; Flat-plate solar collectors; Rubber--specifications; Rubber seals--specifications; Solar collectors--specifications; Solar heating/cooling systems--specifications; Solar materials/applications--specifications;

ICS Code

ICS Number Code 21.140 (Seals, glands)

DOI: 10.1520/D3667-05R10

ASTM International is a member of CrossRef.

ASTM D3667