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发表于 2011-11-17 18:53
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引用第9楼03411007于2011-11-17 14:59发表的 :
! ?7 S2 Q% t0 D! j+ v) zASTM F963-2008 CL4.12
+ \) H, d9 C, k- t- O4 G继续探讨： ~, N% ?" C2 J# `
. C, w) W5 d: \: XASTM 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4 T! ]+ A& s* r& ^4 Z5 N
3 g9 y( y# [8 B- L
ISO8124.1 - 2009 MOD 描述得比较详细：
F4 n [# m. KFlexible plastic film or flexible plastic bags without backing and with a minor dimension of > 100 mm and used
1 \3 Y, Z7 n7 Z4 }; i! M3 Jin toys shall either* [9 v$ `5 S/ U% ]9 \# t! h' w* B
a) have an average thickness of W 0,038 mm and individual thickness of W 0,032 mm when tested in
; c; q* B4 c2 c, ^3 G' vaccordance with 5.10 (determination of thickness of plastic film and sheeting), or
- m1 x" s. }9 \. a6 C! i, g9 m( z) Ob) have perforations with well-defined holes (where material has been removed) of 1 % minimum area on
$ f2 L" f. h) _, U: }7 L3 ]any maximum area of dimensions 30 mm × 30 mm. See Figure 9.
+ @- j- ~, D# l; ]. g& a# {NOTE The requirement in 4.10 b) can be fulfilled by having 3,4 mm diameter holes in a square grid pattern where the( `. ?2 j* S$ q, M) K2 f, a8 k
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 larger1 }7 n/ ]$ s% k) v/ e
than 9 mm2 which is more than 1 % of 900 mm2 (30 mm × 30 mm).8 r; T* f" j- a! |* }
For plastic balloons, the thickness requirement in a) applies to double layers of plastic sheeting (i.e. the
6 q/ e: _: B% M' s$ P+ b1 mthickness is measured without inflating or destroying the balloon).2 I4 O9 z S$ X8 @, q7 b
3 a+ b9 ]' I# o6 V谢谢大家！ |
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