KS M ISO 7326-2008 Rubber and plastics hoses-Assessment of ozone resistance under static conditions《橡胶和塑料软管 静态条件下的耐臭氧性试验的评定》.pdf

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1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS M ISO 7326 KS M ISO 7326:2008 2008 11 26 http:/www.kats.go.krKS M ISO 7326:2008 : ( ) ( ) () () ( ) : (http:/www.standard.go.kr) : : 2003 12 30 : 2008 11 26 2008-0803 : : ( 02-509-7301) (http:/www.kats.go.kr). 10 5 , . KS M ISO 7326:2008 Rubber and plasti

2、cs hoses Assessment of ozone resistance under static conditions 2006 3 ISO 7326, Rubber and plastics hoses Assessment of ozone resistance under static conditions , . 1 5 . 1: 25 mm , . 2: 25 mm , . 3: 25 mm , . 4: , . 5: , . (fittings) KS M ISO 1431 1 . 2 . . ( ) . KS M ISO 1431 1, 1: KS M ISO 23529

3、, 3 1 2 , 3 2 . 4 . 5 , . KS M ISO 7326:2008 2 1 2 3 . . 4 . 4.1 KS M ISO 1431 1 , 4.2 1 ( 1) 4.3 2 ( 2). , . 4.4 ( 3) KS M ISO 1431 1 5.6 . 4.5 3 ( 4). 8 . 4.6 4 ( 5). 1.2 . 5 5.1 5.1.1 1 , . L = (rb dext) 2 dext L : rb : 8.1.1 dext : 5.1.2 2 KS M ISO 7326:2008 3 . 150 mm, 25 mm . 5.1.3 3 25 mm . K

4、S M ISO 23529 . 5.1.4 4 , . 5.1.5 5 50 mm . 5.2 3 . 6 24 . KS M ISO 23529 . . (KS M ISO 23529 ) 48 . 7 , (505) pphm(parts per hundred million, ), (402) 72 . pphm . (mPa) (constant ozone partial pressure) . (101 kPa, 273 K) 1 pphm 1.01 mPa . 8 8.1 1 8.1.1 1 (4.2) . rb , 6 . 0 2 KS M ISO 7326:2008 4 8

5、.1.2 . 8.1.3 2 , 4 , 24 , 48 72 x2 . , . 1 = (rb dext) 2 dext 2 3 1 1 8.2 2 8.2.1 2 (4.3) . 20 mm . 20 % . (ozone-resistance lacquer) . 8.2.2 2 , 4 , 24 , 48 72 2 . , . 8.3 3 8.3.1 (4.4) 20 % . 8.3.2 2 , 4 , 24 , 48 72 2 . , KS M ISO 7326:2008 5 . 1 2 ( = 150 mm) 3 4 5 a 2 2 8.4 4 8.4.1 3 8 . 8.4.2

6、2 , 4 , 24 , 48 72 2 . , . KS M ISO 7326:2008 6 1 2 3 3 4 8.5 5 8.5.1 4 1.2 . 8.5.2 2 , 4 , 24 , 48 72 2 . , . : mm 1 2 a . 4 5 9 . a) b) c) (1, 2, 3, 4 5) d) , , , e) , f) 135513 7017 (02)60094114 (02)600948878 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS M ISO 7326:2008 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Rubber and plastics hoses Assessment of ozone resistance under static conditions ICS 23.040.70

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