1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS L ISO 7991 KS L ISO 7991: 2012 2012 11 30 http:/www.kats.go.krKS L ISO 7991:2012 : ( ) ( ) KCC ( ) : (http:/www.standard.go.kr) : :2007 5 21 :2012 11 30 2012-0661 : : ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS L ISO 7991:2012 i ii 1 1 2 1 3 .1 4 1
2、 5 2 5.1 2 5.2 .2 5.3 .3 6 3 6.1 .3 6.2 .3 6.3 3 6.4 .3 7 .4 7.1 .4 7.2 .4 7.3 4 7.4 .5 8 .5 9 .5 A( ) 6 KS L ISO 7991:2012 ii 1987 1 ISO 7991, Glass Determination of coefficient of mean linear thermal expansion . KS L ISO 7991:2012 Glass Determination of coefficient of mean linear thermal expansion
3、 1 (KS L ISO 7884 8 ). . , . 2 . . ( ) . KS C IEC 60584 1, 1: KS L ISO 7884 8, 8: 3 . 3.1 , (t0; t) . 00001);(ttllltt= (1) t0: t : ( ) l0: t0 ( ) l : t t0 20 , (20 ; t) . 4 4.1 KS L ISO 7991:2012 2 0.1 % . 4.2 (push-rod) 210 5l0(: 2 m/100 mm) . 1 N . . ( 1) . , ( ). , 7.2 . (8. ). 4.3 50 . 0.5 mm .
4、(: tg 150 300 .) 2 . 4.4 (6.1) (51) /min 5.2 (annealing) , (20.2) /min . 4.5 t0 t 2 ( KS C IEC 60584 1 E, J K ) 5 5.1 . . l0 5104 . , 25 mm100 mm 5 mm 5 mm5 mm . , 100 mm2 ( A ). 5.2 30 , (20.2) /min 150 , . KS L ISO 7991:2012 3 5.3 2 (7.4 ). 6 6.1 3. 20 . 1828 . 290 t 310 . 190 t 210 , , 95 t 105 3
5、90 t 410 . 300 , 200 , 100 400 . 2 . 7. , (7.4 ). (20 ; t) . 6.2 t0 (annealing) l0(5.2 ) 0.1 % , 6.3 6.4 5 . 6.3 t0 , lmeas 0 . (4.4) . t lmeas . 5 /min . t0 t(6.1 ) lmeas . . . . 6.4 t0 , lmeas 0 . t 20 2 . lmeas . (6.3) t (t0; t) , t (6.4) . KS L ISO 7991:2012 4 7 7.1 , lmeas , t l . l l0 lmeas lQ
6、 lB(2) lQ lB 7.2 7.3 . 7.2 , (2) lQ t0 l0 . lQ t0 l0 . , lQ . )(0Q0Qttll = (3) , Q , , ( ) . , Q . 1 100 7 , 1 100 0.2 /min 900 (annealing) . . . 1 , Q, K 1 20 100 0.5410 620 200 0.5710 620 300 0.5810 620 400 0.5710 6 1 Q 700 . 7.3 lB t . . , . , 7.2 . , 2 . . 8. . KS L ISO 7991:2012 5 7.4 (t0; t) ,
7、 7.2 7.3 l0 lmeas t0 t( ) . 0BQmeas001);(ttlllltt+= (4) (20 ; 300 ), (20 ; 200 ), (20 ; 100 ) (20 ; 400 ) 2 (5.3) (20 ; t) 1010 6K 1 2 (20 ; t) 1010 6K 1 . 2 0.210 6K 1 , . , 2 . 8 , 6., 7. 1). . 7.2 (annealing) (Al2O3) . . . . , , 5.2 . 9 . a) b) , c) , d) e) ( , ) f) 10 6K 1 (20 ; t) (20 ; t) 1010
8、 6K 1 2 (20 ; t) 1010 6K 1 3 t0 t (7.4 ). 1) (CRMs) . International Organization for Standardization(ISO), 1, rue de Varemb, Case postale 56, CH 1211 Geneva 20, SwitzerlandKS L ISO 7991:2012 6 A ( ) , . . . . . ( ) ( 1 2) . 1 . . . . , 2 . 4 ( ), . . . KS L ISO 7991:2012 7 1 2 3 0.5 mm 1 mm 4 0.5 mm
9、 1 mm . A.1 KS L ISO 7991:2012 8 1 2 3 4 5 . A.2 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS L ISO 7991:2012 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS GlassDetermination of coefficient of mean linear thermal expansion ICS 81.040.01
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