GOST 25898-2012 Building materials and products Methods for determination of water vapour permeability and of steam-tightness《建筑材料和制品 蒸气气密性和渗透性测定方法》.pdf

1、 (ISO 12572:2001, NEQ) , ()INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION(ISC)258982012, 1.092 . 1.22009 . , - . , , -, 1 - ( )2 465 3 - , - () ( 18 2012 . 41) : ( 3166) 00497 ( 3166) 00497 AMKGMDRUTJUZ 4 ISO 12572:2001Hydrothermal performance of building materials and products

2、Determination of water vapour transmissionproperties ( . - ) . (en). (NEQ)5 27 2012 . 2013- 258982012 - 1 2014 .6 2589883 -, - . () . , - - , 2014 -, II 2589820121 12 13 .24 .35 36 47 4 () . . . 6 () .7 () .8 () .9 () 10III 258982012 Building materials and products. Methods for determination of wate

3、r vapour permeability and steam-tightness 201401011 , - , , - , . , - .2 :2.1 : , . , .2.2 : , .2.3 : , -, 1 1 2 1 , - , 1 .2.4 : , -, 1 2 1 1 - ; , .2.5 : , d R, .2.6 : . , - ; , .2.7 , - : - , d.1 258982012 3 3.1 - . . - . - , .3.2 , . - , . , .3.3 - 10 , ( ; ; , . .). .3.4 , - .3.5 -, , 1. 1 R(2c

4、215 c215 )/ m c68c116 c68m c68c116 t c106 % , ( ) 2 , 1 j / R.(2c215 c215 )/ c109 /( c215 c215 ) d g /( c215 2) .3.6 , , , 10 %.2 2589820124 :- ();- 0,1 c1770,5 %;- 0,001 - . 0,01 . 10 %;- , c106=50%c1773 % t = 23 C c177 0,5 C, -0,020,3/,;- . .5 5.1 5.1.1 ,.5.1.2 , , , , .5.1.3 , .5.1.4 90 % .5.2 5.

5、2.1 100 100 .5.2.2 ( ) ( ), .5.2.3 10 % .5.3 5.3.1 , 1030 , . , 30 , 30 . ( . .) 35 .5.3.2 , 60. . - , .5.4 0,022,. .5.5 (23 c177 5) C - (50 c177 5) % , 5 %.3 2589820126 6.1 . (-) . . .6.2 , . , - .6.3 . - (15 c177 5) . , , 4. , . . CaCl2, Mg(ClO4)2.6.4 , 7 . . . .6.5 (.6.1) - 1 , 2, 4, 12 24 ().6.6 ,