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引用第9楼03411007于2011-11-17 14:59发表的 :
7 P0 T% K a. N5 \0 X# }! \5 fASTM F963-2008 CL4.12
继续探讨：
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ASTM F963 CL4.12 只是谈到要求的厚度及说明哪些不适应。没有具体谈到：规定的尺寸里要打多大的孔或多大面积的孔; ?3 e0 ?) i: T+ o7 ]( _
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ISO8124.1 - 2009 MOD 描述得比较详细：
% h5 {3 T5 E8 P/ p8 e6 ^! mFlexible plastic film or flexible plastic bags without backing and with a minor dimension of > 100 mm and used' u; o4 W6 \- }1 w/ T
in toys shall either
7 W0 C; B# j/ Ia) have an average thickness of W 0,038 mm and individual thickness of W 0,032 mm when tested in' d) } H& h/ k5 r
accordance with 5.10 (determination of thickness of plastic film and sheeting), or
( @$ a; i0 h6 M1 \. _0 p, Cb) have perforations with well-defined holes (where material has been removed) of 1 % minimum area on' d: {8 `! h) i& J9 T
any maximum area of dimensions 30 mm × 30 mm. See Figure 9.$ K) B' g$ Q U+ f
NOTE The requirement in 4.10 b) can be fulfilled by having 3,4 mm diameter holes in a square grid pattern where the+ u9 l: t1 m1 c Z8 x6 O
vertical and horizontal distance between the centre of two holes is 22,9 mm or less (the area of a 3,4 mm hole is larger
# N4 `2 t1 W8 S$ A- v1 Cthan 9 mm2 which is more than 1 % of 900 mm2 (30 mm × 30 mm).
- a2 v$ r% I' ?For plastic balloons, the thickness requirement in a) applies to double layers of plastic sheeting (i.e. the
' z9 A; d) d+ z6 [8 f, s9 y" }3 Xthickness is measured without inflating or destroying the balloon).! k! z3 p, d% |2 h# N5 C) K
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谢谢大家！ |
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发表于 2011-11-17 15:00
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