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UL 2556& i) P6 z( a- U- R) Y: E( D- E
4.2.4 Preparation of specimens
' L* o: p& ~/ _% y3 O1 C4.2.4.1 Sample selection and number of specimens7 l* `7 J9 [( C( e3 {, s- `
Samples shall be taken from a wire, cable or cord, finished or during manufacture, at any time following% `+ \( k6 B0 H7 w+ x1 j4 R
curing of the compound, where applicable.
3 |0 y) \( T# B/ v/ C/ [A minimum of six specimens per sample shall be tested ²as received² and after accelerated aging or liquid% Q1 Y' c6 z5 [; H% b1 r
immersion. If the specimen breaks outside of the gauge marks or the grips of the mechanical& q' V4 w& G0 }/ e* \" k0 o
extensometer at a value below that specified as the acceptable minimum, the test results shall be4 `/ r% I: a8 G1 l, p5 t% {+ |' ^# m
disregarded and the test shall be repeated with another specimen.
* J2 S! u! K' U' @# a% q
! u) E4 |' n) E# F; k, a% N% @要求最少取6個樣板. |
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