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各位同学,4 F4 W6 ^. |! U4 I! |5 N! f- W
UL1598,第16章垫片加速老化测试,评估垫片的张力和伸长率,各位是用多大的力去拉的?5 B* y- J# Z. \
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16.5.9 Gasket accelerated aging (Method A)
8 h# s. p3 D' k% I. r1 E16.5.9.1 A gasket or bushing shall be subjected to the gasket accelerated aging test.
2 p! b: e) K2 R" H$ C" |9 L16.5.9.2 Three specimens of the gasket or bushing material shall be evaluated for tensile strength and
$ R8 h3 F2 Q) U$ L Telongation, and the average values calculated.
2 F1 H9 F* C( i$ i e$ o16.5.9.3 Three additional specimens shall be conditioned for 168 h in a circulating air oven at a/ G* z. z3 M* _8 F; k* Z. J/ f
temperature 20 °C above the maximum gasket or bushing temperature as determined by the normal
]1 J; B" o" e4 Ktemperature test of Clause 14.) b. _* ]3 E7 g" o. d. o/ d
16.5.9.4 After conditioning, the 3 specimens shall have an average tensile strength of not less than 60
6 I9 o) V) i% V: ^- Mpercent and an average elongation of not less than 75 percent of the values determined before: o+ f' v2 G/ Q7 I: n5 P( c0 u
conditioning.$ J, Q+ w3 h. ^# ^; @0 F& H3 L; f
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谢谢!
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