哑铃状试样（UL1581）

420.2用于将样品材料冲切成试样的模子,应产生哑铃状试样.如图420.1所示的试样可使用ASTM模子C加工,该试样具有1/4in或6mm宽的缩颈.如果对于模子C材料不够,可使用ASTM模子D,这种模子产生的试样具有1/8in或3mm宽的缩颈,其它尺寸也比使用模子C时小.

UL 2556, clause 4.2.3 c)

c) dies B,C,D,E or F as described in AS 412 or NMX-J-178-ANCE. Dies C and D shall be used with 25mm (1in)gauge marks. Dies B,E, and F shall be used with 50mm (2in) gauge marks. Dies capable of cutting a 6.3mm or 3.2mm (0.250or0.125in)wide specimen having parallel sides are permitted;