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UL 2556
" d" F; r4 ?& k: r% |/ e/ E5 v0 ]4.2.4 Preparation of specimens
: b2 w8 F3 l; S) `4.2.4.1 Sample selection and number of specimens
" W7 M' @: Q0 A+ C% C, C% [/ u6 KSamples shall be taken from a wire, cable or cord, finished or during manufacture, at any time following- I" n8 \7 V& f6 h7 A: @ A
curing of the compound, where applicable.
0 K8 @7 O" E7 yA minimum of six specimens per sample shall be tested ²as received² and after accelerated aging or liquid
7 W. `2 C! H4 O/ g0 c2 Himmersion. If the specimen breaks outside of the gauge marks or the grips of the mechanical; o- i4 z( ?$ |( M: e$ D/ y5 f
extensometer at a value below that specified as the acceptable minimum, the test results shall be
9 v8 R, T5 Z( R2 W8 ]( \1 G; sdisregarded and the test shall be repeated with another specimen.. c8 K A: m9 \- y
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要求最少取6個樣板. |
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