ASTM-C1248 › Historical Revision Information
Standard Test Method for Staining of Porous Substrate by Joint Sealants
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Scope
1.1 This test method covers four types of laboratory tests to determine if a joint sealant has a probability of staining a porous substrate (such as marble, limestone, sandstone, and granite). The tests are on compressed samples and include (1) storage under standard laboratory conditions, (2) storage in an oven, and (3) exposure in a fluorescent UV/condensation device, and (4) exposure in a xenon arc device.
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 all of the safety problems, 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.
1.4 The committee with jurisdiction over this standard is not aware of any comparable standards published by other organizations.
Significance and Use
5.1 Staining of building materials is an aesthetically undesirable occurrence. This test method evaluates the likelihood of a sealant causing an early stain on a porous substrate due to exudation of materials from the sealant. Since this is an accelerated test, it does not necessarily predict that the tested sealants will not stain or discolor porous substrates over longer periods of time.
Keywords
joint sealants; porous substrates; sealants; staining; ultraviolet exposure; ICS Number Code 91.100.50 (Binders. Sealing materials)
To find similar documents by ASTM Volume:
04.07 (Building Seals and Sealants; Fire Standards; Dimension Stone)
To find similar documents by classification:
91.100.50 (Binders. Sealing materials Including geomembranes, asphalts for buildings, etc.)
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Document Number
ASTM-C1248-08(2012)
Revision Level
2008 R12 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
Dec. 15, 2012
Document Type
Test Method
Page Count
4 pages
Committee Number
C24.40