1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS M 6676 KS M 6676: 2008 2008 5 28 http:/www.kats.go.krKS M 6676: 2008 : () ( ) () () () ( ) : (http:/www.standard.go.kr) : :1974 11 29 :2008 5 28 20080239 : : ( 025097301) (http:/www.kats.go.kr). 10 5 , . KS M 6676: 2008 i ii 1 1 2 1 3 .1 4 .2 5 .2 5.1 .2
2、5.2 2 5.3 .4 5.4 5 5.5 50 % .5 5.6 7 5.7 .7 6 ( ) .7 6.1 .7 6.2 8 6.3 .10 6.4 .11 6.5 11 6.6 13 6.7 .13 7 (TR ) 16 7.1 .16 7.2 16 7.3 .16 7.4 18 7.5 .19 7.6 19 7.7 .19 1( ) 21 .23 KS M 6676: 2008 ii 2006 2 ISO 812(Rubber, vulcanized or thermoplastic Determination of low-temperature brittleness), 200
3、3 3 ISO 1432Rubber, vulcanized or thermoplastic Determination of low temperature stiffening(Gehman test) 2005 4 ISO 2921Rubber, vulcanized Determination of low-temperature characteristics Temperature-retraction procedure(TR test) . . KS M 6676: 2008 Rubber, vulcanized or thermoplastic Determination
4、of low temperature properties . . . 1 ( .) 50 % , , . . ISO/IEC Guide 21 IDT( ), MOD( ), NEQ( ) . ISO 812: 2006, Rubber, vulcanized or thermoplastic Determination of low-temperature brittleness ISO 1432: 2003, Rubber, vulcanized or thermoplastic Determination of low-temperature stiffening (Gehman te
5、st) ISO 2921 : 2005, Rubber, vulcanized Determination of low-temperature characteristicsTemperature-retraction procedure(TR test) 2 . . KS A 3251 1, 1: KS D 3556, KS M 6641, KS M 6781, KS M 6782, 3 KS M 6641 KS M 6781 . KS M 6676: 2008 2 3.1 50 % 50 % . , , . 3.2 (brittleness temperature) 3.3 (testi
6、ng speed) 4 . a) b) ( ) c) (TR ) 5 5.1 50 % . 5.2 5.2.1 , . 5.2.2 1 , 2 . (1.60.1) mm , 6 mm , (2.00.2) m .1) . (8.00.3) mm , (6.40.3) mm . 1) , 1 a) , 1 b) . KS M 6676: 2008 3 , 6.5 mm .2): mm a) b) 1 2 3 4 5 1 1 2 3 4 2 5.2.3 2) , . . 80 mm2 0.15 0.25 N m( M4 M5) . KS M 6676: 2008 4 , 0.5 . . 5.2.
7、4 , .3)5.3 5.3.1 2 . A : 26 40 mm, (6.01.0) mm, (2.00.2) mm . B : 3 (2.00.2) mm . : mm 3 B 5.3.2 KS M 6781 6.5 . 5.3.3 10 . 5 . 5.3.4 KS M 6781 6.6 . 3) . ( .) 60 70 120 2552.50.1 6.350.10 6.350.10 2.00.2 KS M 6676: 2008 5 5.3.5 1 0.1 mm , , . 5.4 5.4.1 . a) KS M 6781 . b) 100 . c) (2.00.2) m . 5.4.
8、2 . a) , 25 mm . b) , . c) .4)d) 1 2 . 19 mm . . e) 5 5.4.1 c) 1 .5)f) , 2 . 50 % . 10 . 1 . 2 50 % . . 5.5 50 % 50 % a) b) . a) 50 % (1) . 4) . 5) . KS M 6676: 2008 6 +=21100hbSTTT (1) Tb: 50 % ( ) Th: ( ) T : ( ) S : Th . : 10 30 : . 32 : 2 34 : 3 36 : 6 38 : 8 40 : 42 : Th 40 T 2 S 20 30 60 80 10
9、0 290 Tb Th T (S/100 1/2) 40 2(290/100 1/2) 40 4.8 35.2 35 . b) . 4 , . 50 % 50 % . . , . 10 . 50 % . KS M 6676: 2008 7 4 50 % 5.6 5. . 5.7 . a) b) 1) 2) ( ) c) 1) 2) 3) 4) d) 1) ( ) 2) 50 % , . e) f) 6 ( ) 6.1 (%)() KS M 6676: 2008 8 (stiffening) . 1 . 6.2 6.2.1 , . 5 . 6.2.2 (Torsion apparatus) (B
10、) 180 (A) . (C) . (E) (D) . , 5 (G) (F) . . (H) . . . 6.2.3 (B) (KS D 3556) (658) mm 0.70 mN m/rad, 2.81 mN m/rad 11.24 mN m/rad . 2.81 mN m/rad . 6.2.4 (I) (J) . .6) (H) .7)6.2.5 1 . . 6.2.6 5.2.4 . . , , . . 6) 5 10 . 2 . (K) , (L) .7) (E) (D) . 7) 2 . 1.3 mm, 12 mm . . KS M 6676: 2008 9 A E I B F
11、 J C G K D H L 5 6.2.7 KS M 6676: 2008 10 1 . 6.2.8 5.2.3 6.2.9 . 6.2.10 . 6.3 . 6.3.1 a) . 90 , 20 . . 6 3 % . : mm 6 b) (2) . 122mlI = (2) I : (kg m2) m : (kg) l : (m) c) ( ) (3) . 0001422=TIK (3) l 2 l 6l: 200 250KS M 6676: 2008 11 K : (mN m/rad) T : (S) I : (kg m2) 6.4 6.4.1 (40.02.5) mm, (3.00.
12、2) mm, (2.00.2) mm . 6.4.2 5.3.2 . 6.4.3 2 . 1 . 6.4.4 5.3.4 . 6.4.5 5.3.5 . 6.5 6.5.1 . a) KS M 6781 . b) KS M 6781 . 16 . 4 . 3 . 2 . c) 5 . 15 . d) 180 . e) 10 . f) 5 1 . 6.5.2 . KS M 6676: 2008 12 a) . 1) (253) mm . . . 2) . 25 mm , (232) . . 0 . 180 , 10 . 120 170 . 170 0.7 mN m/rad , 120 11.24
13、 mN m/rad . 3) , . (232) . 4) .8)5) . 15 1 , (232) . . 2 . 6) 5 . 5 .9) (232) 10 . b) . 1) 30 . 10 2 . 10 5 . 2) 3 /min . 1 /min . 5 . 6.5.3 a) (4) . =fadLKG3)180(16 (4) G : (MPa) K : (mN m/rad) L : (mm) a : (mm) d : (mm) 8) (232) . 9) 1 5 . KS M 6676: 2008 13 f : a/d ( 1) : ( ) b) 1) (232) . (5) .
14、= )180()180(RM (5) RM : : (232) ( ) : ( ) 2) (RM) 2 7 2, 5, 10, 100 . 2 (232) 2 , 5 , 10 , 100 . , T2, T5, T10, T100 . 6.6 2 t2, t5, t10, t100 (232) KS A 3251 1 . 6.7 . a) b) 1) 2) ( ) c) 1) 2) 3) 4) 5) d) 1) t2, t5, t10 t1002) (232) e) f) KS M 6676: 2008 14 1 a/d f a/d f a/d f 1.00 1.05 1.10 1.15 1.20 1.25 1.30 1.35 1.40 1.45 1.50 1.60 1.70 1.75 1.80 1.90 2.00 2.249 2.359 2.464 2.563 2.658 2.748 2.833 2.914 2.990 3.063 3.132 3.260 3.375 3.423 3.479 3.573 3.659 2.25 2.50 2.75 3.00 3.50 4.00 4.50 5.00 6.00 7.00 8.00 9.00 1