UL1598 垫片老化测试

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广东安规检测
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IEC60335试验指甲

各位同学，
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？
3 _! }4 y0 I+ o( E9 i# M* G9 x8 ~
16.5.9 Gasket accelerated aging (Method A)
0 P- U& w. B1 v9 X- M3 j16.5.9.1 A gasket or bushing shall be subjected to the gasket accelerated aging test.
16.5.9.2 Three specimens of the gasket or bushing material shall be evaluated for tensile strength and
9 `  A& w# O0 r! T( relongation, and the average values calculated.
16.5.9.3 Three additional specimens shall be conditioned for 168 h in a circulating air oven at a
: N7 K# p  w0 P% V$ J/ {temperature 20 °C above the maximum gasket or bushing temperature as determined by the normal
temperature test of Clause 14.
16.5.9.4 After conditioning, the 3 specimens shall have an average tensile strength of not less than 60
percent and an average elongation of not less than 75 percent of the values determined before
conditioning.
5 U' Q7 }: M# u/ ]
" m3 C; _( M' I0 e7 T谢谢！
3 l% t8 W. ?. t/ i% w) C3 C

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这个是不是对比老化前后的尺寸的变化啊？