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UL 2556/ a7 l( \1 [$ ?5 D
4.2.4 Preparation of specimens
$ S, g/ k8 b3 p1 J- @4.2.4.1 Sample selection and number of specimens
1 f2 A: O* s2 j3 |7 _Samples shall be taken from a wire, cable or cord, finished or during manufacture, at any time following5 b! K$ `5 C' I- M' v
curing of the compound, where applicable.
8 p8 \% Y0 `$ f* ^6 j- \A minimum of six specimens per sample shall be tested ²as received² and after accelerated aging or liquid
. B- h9 }% e1 Wimmersion. If the specimen breaks outside of the gauge marks or the grips of the mechanical
& R; F4 c* J9 }' T) [4 dextensometer at a value below that specified as the acceptable minimum, the test results shall be w- k% ]# K5 N: U8 x! A
disregarded and the test shall be repeated with another specimen.5 o! ^* |& u8 s/ c8 z5 x
, P3 A( s/ A- z, V) R4 a) ^要求最少取6個樣板. |
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