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ASTM International, 05/01/2013
Publisher: ASTM
File Format: PDF
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Published:01/05/2013
Pages:7
File Size:1 file , 270 KB
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1.1 This practice describes destructive and nondestructive procedures.
1.2 The destructive procedure stresses the sealant in such a way as to cause either cohesive or adhesive failure of the sealant or cohesive failure of the substrate where deficient substrate conditions exist. The objective is to characterize the adhesive/cohesive performance of the sealant on the specific substrate by applying whatever strain is necessary to effect failure of the sealant bead. It is possible that the strain applied to the sealant bead may result in the failure of a deficient substrate before effecting a failure in the sealant.
1.3 The nondestructive procedure places strain on the sealant and a stress on the adhesive bond. Though termed nondestructive, this procedure may result in an adhesive failure of a deficient sealant bead, but should not cause a cohesive failure in the sealant. The results of this procedure should be either adhesive failure or no failure.
1.4 The non-destructive procedure can be used for continuous inspection of 100 % of the joint(s) or for any areas where deficient conditions, which are inconsistent with the practices of Guide C1193, are suspected.
1.5 The committee with jurisdiction over this practice is not aware of any comparable practices published by other organizations or committees.
1.6 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.7 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.
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