Over deze norm
1.1 This practice provides instruction for the preparation of test specimens of pressure sensitive adhesive (psa) sealed joints of the type employed in insulation vapor retarder systems, for subsequent testing per Test Methods to determine the water vapor permeance (“permeance”) of those joints. It does not cover preparation of other types of joints.
1.2 This practice also provides requirements for the content of reports issued in conjunction with Test Methods testing of these joints.
1.3 Joints are made with factory coated psa tapes or psa coated laminate jacket (vapor retarder cladding) materials.
1.3.1 The types of materials and joints to be tested are generally encountered in mechanical systems in commercial and industrial insulation applications, and in HVAC systems insulation.
1.3.2 Typical psa joints that are employed in vapor retarder systems for mechanical insulation include:
18.104.22.168 Overlap with double-sided tape.
22.214.171.124 Overlap with coated laminate jacket.
126.96.36.199 Butt with single-sided insulation tape.
188.8.131.52 Intersection of overlap and butt joint.
1.4 Test Methods is to be followed for specific testing instruction beyond the areas of guidance provided herein, that is, after the specimens are prepared in the desired test configuration.
1.5 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.
1.6 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.
|Engelse titel||Standard Practice for Preparation of Specimens and Reporting of Results for Permeance Testing of Pressure Sensitive Adhesive Sealed Joints in Insulation Vapor Retarders|