1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS M ISO 1209 2 2: KS M ISO 1209 2:2012 2012 12 24 http:/www.kats.go.krKS M ISO 1209 2:2012 : ( ) ( ) SREAP ( ) : (http:/www.standard.go.kr) : :2002 11 30 :2012 12 24 2012-0749 : : ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS M ISO 1209 2:2012 i 2007 3
2、 ISO 1209 2, Rigid Cellular plastics Determination of flexural properties Part 2: Determination of flexural strength and apparent flexural modulus of elasticity , . KS M ISO 1209 2:2012 2: Rigid cellular plastics Determination of flexural properties Part 2: Determination of flexural strength and app
3、arent flexural modulus of elasticity 1 . 2 . . ( ) KS M ISO 291, KS M ISO 1923, 3 . ( 1 ). , . KS M ISO 1209 2:2012 2 A: (151) mm B: (151) mm L: 1 4 4.1 . 1 % . . 4.2 2 . (151) mm . L 200 450 mm . 300 mm . 4.3 . 2 . 4.4 KS M ISO 1923 . 5 5.1 L 1 . (F) L/2 A B B L L/2 KS M ISO 1209 2:2012 3 1 mm mm b
4、 d L 350 4d 25 300 (L 50) 2 d 15 38 12d 16d , 12 d 16 d (4.2 ). 12 d 16 d . 5.2 . . . 5.3 5 . . , . . 6 KS M ISO 291 . . (232) , (5010) % (235) , 501020% (275) , 651020% 196 , 70 , 10 , 0 40 . 7 KS M ISO 1923 . . . KS M ISO 1209 2:2012 4 : (201) mm/min : (201) mm/min (10010) mm/min / ( 2 ). 5 % . 5
5、% . , 30 mm 5 % . . 2 / 8 8.1 R(kPa) 62R105.1 =bdLFR FR : (kN) L : (mm) b : (mm) d : (mm) (kN) xtFtFR (mm) KS M ISO 1209 2:2012 5 8.2 E(kPa) 6tt33104=xFbdLE Ft : xt (kN)( 2 ) xt : (mm) L, b d : 8.1 . 9 1993 10 . , ( 2 ). (5 ). KS A ISO 5725 ( ) 2 . 2 (95 % ) (95 % ) 5 % 15 % 10 . a) b) c) d) e) f) ,
6、 g) ( , ) h) i) (kPa) j) (kPa) k) (N) l) m) n) o) p) 2: 153787 1 92 3(16) (02)26240114 (02)262401489 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS M ISO 1209 2:2012 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Rigid cellular plastics Determination of flexural properties Part 2:Determination of flexural strength and apparent flexural modulus of elasticity ICS 83.100
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