|
UL 2556
/ Y6 R+ u6 T; i& A" x4 r4 n4.2.4 Preparation of specimens3 G- x/ Y9 W# \! }1 y
4.2.4.1 Sample selection and number of specimens) |' T6 {% g9 q* C. G$ N$ d; J
Samples shall be taken from a wire, cable or cord, finished or during manufacture, at any time following+ Y* E0 Q1 V& K7 F2 y
curing of the compound, where applicable.
, \4 w: E) m5 P) A( |A minimum of six specimens per sample shall be tested ²as received² and after accelerated aging or liquid
4 ?% u' l% O" M9 a. {* o* fimmersion. If the specimen breaks outside of the gauge marks or the grips of the mechanical5 J/ x" K5 E; E: U) k9 v- M
extensometer at a value below that specified as the acceptable minimum, the test results shall be
: w7 U; ]6 A. A) g0 kdisregarded and the test shall be repeated with another specimen.& V; v% e2 |$ i* |, m1 e! a
" l6 `) o1 @8 `# k
要求最少取6個樣板. |
|