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引用第9楼03411007于2011-11-17 14:59发表的 :
8 H$ j' |! p; c6 a0 O! k" nASTM F963-2008 CL4.12
1 x! j: _( ]9 I) L& i继续探讨：
8 X* E. k5 c1 ]8 r( k+ L4 A5 j5 X
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4 Z* U J: K: Y; Z
" J/ s1 F. S+ v
ISO8124.1 - 2009 MOD 描述得比较详细：
2 q5 S; D0 G! M4 Z6 GFlexible plastic film or flexible plastic bags without backing and with a minor dimension of > 100 mm and used: d- E3 X9 j& O" ?# I# V+ Y" j+ a6 j
in toys shall either. X; h* D3 {# X! \$ m4 w
a) have an average thickness of W 0,038 mm and individual thickness of W 0,032 mm when tested in' ^ u) [0 [: e8 w' l# D+ M
accordance with 5.10 (determination of thickness of plastic film and sheeting), or
% Z: P) I' B* o! ^- `b) have perforations with well-defined holes (where material has been removed) of 1 % minimum area on
/ D1 ^3 l2 Y( ^: f [; Many maximum area of dimensions 30 mm × 30 mm. See Figure 9.
- a7 F' t. u$ ]* z* TNOTE The requirement in 4.10 b) can be fulfilled by having 3,4 mm diameter holes in a square grid pattern where the
. q8 S: E) h) y) \' b/ y; s+ i+ Bvertical and horizontal distance between the centre of two holes is 22,9 mm or less (the area of a 3,4 mm hole is larger7 Q' ~: Q1 {. @3 K9 R8 N n# e0 ~
than 9 mm2 which is more than 1 % of 900 mm2 (30 mm × 30 mm).1 ]( S! Z7 b$ _" r
For plastic balloons, the thickness requirement in a) applies to double layers of plastic sheeting (i.e. the
, H, G$ g; z- v- b+ `$ r4 @thickness is measured without inflating or destroying the balloon).! F5 [ x) B# f: ^6 P
& p) M$ |9 h* p+ W/ W8 r# N* C6 A
谢谢大家！ |
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发表于 2011-11-17 15:00
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