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<p>ISO 2528:2017 specifies a method for the determination of the water vapour transmission rate (often erroneously called "permeability") of sheet materials.</p>
<p>This method is not generally recommended for use if the transmission rate is expected to be less than 1 g/m<sup>2</sup> per day or for materials thicker than 3 mm. In such cases the method specified in ISO 9932 is preferred.</p>
<p>The method cannot be applied to film materials that are damaged by hot wax or that shrink to an appreciable extent under the test conditions used.</p>
<p>For some purposes it may be necessary to determine the transmission rate of creased material; a procedure for this is given in Annex A.</p>
Reģistrācijas numurs (WIID)
88372
Darbības sfēra
<p>ISO 2528:2017 specifies a method for the determination of the water vapour transmission rate (often erroneously called "permeability") of sheet materials.</p>
<p>This method is not generally recommended for use if the transmission rate is expected to be less than 1 g/m<sup>2</sup> per day or for materials thicker than 3 mm. In such cases the method specified in ISO 9932 is preferred.</p>
<p>The method cannot be applied to film materials that are damaged by hot wax or that shrink to an appreciable extent under the test conditions used.</p>
<p>For some purposes it may be necessary to determine the transmission rate of creased material; a procedure for this is given in Annex A.</p>
