ASTM C509-06(R2021) pdf free download

ASTM C509-06(R2021) pdf free download.Standard Specification for Elastomeric Cellular Preformed Gasket and Sealing Material
1. Scope
1.1 This specification applies to those elastomeric cellular materials of a firm grade that are manufactured in preformed shapes for use as gaskets and for use as sealing materials, in the form ofcompression seals or gaskets, or both, for glazing other building joint applications. N OTE 1—For softer cellular elastomeric materials used in secondary sealing applications, refer to Specification D1056. 1.2 Test Method C1166, as referenced in this specification, should be used to measure and describe the properties of materials, products, or assemblies in response to heat and flame undercontrolledlaboratory conditions andshould not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, results ofthis test may be used as elements ofa fire risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end use. 1.3 The following precautionary caveat pertains only to the test method portion, Section 11, of this specification: This standard does not purport to address all ofthe safety concerns, ifany, associated with its use. It is the responsibility ofthe user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 The committee with jurisdiction over this standard is not aware of any comparable standards published by other orga- nizations. 1.5 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
10. Sampling
10.1 When possible, the completed manufactured product ofa suitable section thereofshall be used for the tests specified. Representative samples of the lot being examined shall be selected at random as required. 10.2 When the finished product does not lend itself to testing or to the taking of test specimens because of compli- cated shape, small size, metal or fabric inserts, or other reasons, standard test strips shall be prepared. The standard extruded specimens for testing, except where a specific specimen size is defined by a particular test method, shall be 6.4 mm ( 1 ⁄ 4 in.) thick by 31.8 mm (1 1 ⁄ 4 in.) wide in rectangular cross section. The test pieces for flame propagation tests shall be as specified in 11.8. All test pieces shall be made from the same compound and shall have the same apparent density and state of cure as the product they represent. 10.3 The tests for dimensional stability, ozone resistance, water absorption, and nonstaining may be made on samples from the material to be shipped or on samples representative of it. Tests for compression deflection, compression set, heat aging, flame propagation, and low-temperature brittleness may be made on standard samples previously prepared in accor- dance with 10.2.
11. Test Methods
11.1 Compression-Deflection—Specification D1056. Base calculations of compression-deflection on the original thick- ness of the specimens. 11.2 Compression Set—Test Methods D395, Method B. 11.3 Compression Deflection After Heat Aging: 11.3.1 A 152.4-mm (6-in.) length of the finished extrusion shall be heat aged along with the specimen for Specification D1056 and shall pass the requirements of Table 1, Footnote B. 11.3.2 Test for compression-deflection by first aging the specimen (a piece of appropriate size for the compression- deflection test, instead of the dumbbell-shaped tension speci- men) in accordance with Test Method D865, then measuring the compression-deflection value in accordance with Specifi- cation D1056. 11.3.3 The specimen for heat aging shall be large enough to allow the taking of the appropriate number and size of specimens as defined by Specification D1056. The cutting of specimens for Specification D1056 shall be done after the heat aging has been performed. 11.4 Dimensional Stability After Heat Aging—Determine the dimensional stability by subjecting a 152.4-mm (6-in.) length of the extruded shape to heat aging for 70 h at 100 °C (212 °F) in accordance with Test Method D865. After aging, the changes in length and breadth dimensions of the specimen shall not exceed 4 %. 11.5 Ozone Resistance—Test Method D1149. The concen- tration of ozone shall be 100 mPa for Type I and 300 mPa for Type II. The time of test shall be 100 h at 40 6 2 °C (104 6 3.6 °F) with a specimen as defined by 10.2 with a length of 152.4 mm (6 in.) and with a specimen elongation of 40 %. 11.6 Low-Temperature Brittleness—See Appendix X1. 11.7 Water Absorption—Use Test Method C1083.