Aparato Pervap mod. 728 Pervap Device mod. 728

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Aparato Pervap mod. 728 Pervap Device mod. 728

Pervap Device mod. 728 !!"#$ %" "#&'#() " )$* $ " )#)' + ',"# ) ') "$ )#$ !- ./0 *!-12//00TEST TO DETERMINE THE PERMEABILITY IN WATER VAPOR FOR LEATHERThe device designed to carry out this test is called Pervap model 728, according to UNE-ENISO 14268 and UNE-EN ISO 20344 ap6.6.


3TEST DESCRIPTION" )$* $ 4 '5 $,6 ) " 7 $7 "7 , ,) '## ) 8, ')# ) ,) $ ') $("# * $ '"' 76 ,)4, '# ) # ) ,) ($4 )"#& " # " #) # " '## ) $9$# ):#')$) ) :'#$" $ ') 8, $ )# ) ) ## ) 7# " '#() " '## ) " '## ) $ $ " ' )& * " 4#)"#& " )$*+ * " $ ;, 8, ;$#7$7# " $ ') $ #)# "#4 )'#The test method is carried out helding the sample into screw plug of a bottlewith a solid desiccant and under a high air flow in standard atmosphere. Theair is constantly moved by rotation movement of the desiccant in the bottles.The container is weighted before and after the test and the humidity quantityis the difference of the weights.

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