GOST R 54867-2011 Multilayer plastics pipes Determination of the long-term strength《多层塑料管 长期强度的测定》.pdf

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2、mination oflong-term strength) 1167-1 1167-2, , 2415780. 1.52004 ( 3.5)5 , - . - () . , , 2012 , - - II 5486720111 12 13 14 .25 36 37 5 () I 6 () 7III 548672011 Multilayer plastics pipes. Determination of the long-term strength 201301011 : , - ( ), (), ( ).2 : 1508883 ( 9080:2003) . ( 9080:2003 - ,M

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4、 ).3.6 SDRm: - (DN OD) n,m.3.7 pLPL,: , 97,5 %- () t.3.8 c115LPL,: , 97,5 %- - T t.3.9 I: - .3.10 II: .3.11 pLTHS,: -, T t (50 %- ).3.12 c115LTHS,: -, t.4 :) ( ), (.1) , - c115LTHS , 54866 , ;b) , .2 548672011 (.1) - (. 6.1.3). , - , :- ;- / .5 24157.6 1)6.1 I. 6.1.1 . , - 24157 , .6.1.2 - (.1), . c

5、115LPL (T,t,0,975) , - 6.1.1, 54866. , , - , . , 54866.6.1.3 (.1) . (.1) , , 54866 , - :T =80t = 3000 T =95t = 1000 . (, 60 3000 ) - . - , . - II. , , .6.1.4 - c115LPL (T,t,0,975), - 54866.3 5486720111) , .6.2 II. 6.2.1 - . 24157.6.2.2 - , 6.2.3.2. 54866. - SDRm. 54866.6.2.3 6.2.3.1 6.2.3.2 , - .6.2.3.2 54866 , :- 1 26 ;- 2 26 63 ;- 3 63 .6.2.3.3 54866 , , 6.2.2. , - .6.2.4 6.2.4.1 - pLTHS , 6.2.3, . 90 % pLTHS , 6.2.3. , 6.1.2 6.2.2.6.2.4.2 80 C, . 18 , 10 10000 , .