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Significance and Use
This test method is valuable in the development and selection of flexible barrier materials suited for use as grease barriers.
The test is rapid in comparison with other methods because of the extremely small quantity of oil required for detection (about 6 μg). The actual time to failure is a multiple of the values obtained by this test method. When permeation is through an absorbent structure such as kraft paper coated with polyethylene, the failure times will be longer and variable, depending on the variation in porosity and thickness of the structure.
1.1 This test method provides standard conditions for determining the rate of grease penetration of flexible barrier materials. Pinholes, which can be measured by a separate test, will increase the rate of grease penetration as determined by this test method.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 This standard does not purport to address the safety concerns 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.
D374 Test Methods for Thickness of Solid Electrical Insulation
D618 Practice for Conditioning Plastics for Testing
D1898 Practice for Sampling of Plastics
TAPPI StandardTAPPI T465 sm-52 Creasing of Paper for Water Vapor Permeability Tests Available from Technical Association of the Pulp and Paper Industry (TAPPI), 15 Technology Parkway South, Norcross, GA 30092, http://www.tappi.org.
ICS Number Code 55.080 (Sacks. Bags); 55.040 (Packaging materials and accessories)
ASTM F119-82(2008), Standard Test Method for Rate of Grease Penetration of Flexible Barrier Materials (Rapid Method), ASTM International, West Conshohocken, PA, 2008, www.astm.orgBack to Top