1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS M ISO 845 KS M ISO 845: 2012 2012 12 23 http:/www.kats.go.krKS M ISO 845:2012 : ( ) ( ) SK ( ) : (http:/www.standard.go.kr) : :1980 12 3 :2012 12 23 2012-0747 : : ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS M ISO 845:2012 i 2006 3 ISO 845, Cellular
2、 plastics and rubbers Determination of apparent density . KS M ISO 845:2012 Cellular plastics and rubbers Determination of apparent density 1 , . , . “ ” . 2 . . ( ) . KS M ISO 291, KS M ISO 1923: 2010, 3 . 3.1 3.2 4 . 4.1 , 0.1 % . 4.2 , KS M ISO 1923 . KS M ISO 845:2012 2 5 5.1 . . 100 cm3 . . 5.2
3、 5 . . . 5.3 5.3.1 72 . 48 16 . 72 10 % . 5.3.2 , ( ) 16 . 72 . KS M ISO 291 a) (232) , (5010) % b) (235) , (50 2010+) % , c) (275) , (65 2010+) % (232) , (272) 6 6.1 KS M ISO 1923 . 3 . 5 . . 6.2 0.5 % . KS M ISO 845:2012 3 7 7.1 ( ) kg/m3 . 610=Vm m : (g) V : (mm3) 0.1 kg/m3 . , 15 kg/m3 , . . 6aa
4、10+=Vmm ma : (mm3) (g) , (g/mm3) . 23 , 101 325 Pa(760 mmHg) 1.22010 6g/mm3 , 27 , 101 325 Pa 1.195 510 6g/mm3 . 7.2 s( ) , 2 . 122=nnxxs x : 1 x : n : 8 8.1 72 . . 8.2 . 5 , 1.7 %(95 % ) 2.6 %(95 % ) . 9 . KS M ISO 845:2012 4 a) b) c) d) e) , , f) , , g) ( , ) h) , , , i) 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS M ISO 845:2012 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Cellular plastics and rubbers Determination of apparent density ICS 83.100