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引用第9楼03411007于2011-11-17 14:59发表的 :
. u3 G8 b; H/ S6 c) sASTM F963-2008 CL4.12
5 x9 H' ]7 s6 P) [继续探讨：* f7 K5 K& j- W0 o6 A7 M- }
/ N/ m1 ~, B* ^& ~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 @) @/ e3 n% V. ^" u* [0 {3 ]6 |
7 M7 }0 ^7 q( g T1 I% D5 sISO8124.1 - 2009 MOD 描述得比较详细：6 H+ n; Z. @- _$ I4 `
Flexible plastic film or flexible plastic bags without backing and with a minor dimension of > 100 mm and used8 c1 z% L4 l% R I! O/ U. r
in toys shall either# J+ ^8 O% ^8 x$ t$ {
a) have an average thickness of W 0,038 mm and individual thickness of W 0,032 mm when tested in& X& t2 [; N) R' C+ O* o- N& C
accordance with 5.10 (determination of thickness of plastic film and sheeting), or
- m' v$ T6 n7 |! L7 ]$ c2 x! ib) have perforations with well-defined holes (where material has been removed) of 1 % minimum area on
+ `! S& u9 `, O' A( cany maximum area of dimensions 30 mm × 30 mm. See Figure 9.
. I9 B' q: Q* x& A3 p" YNOTE The requirement in 4.10 b) can be fulfilled by having 3,4 mm diameter holes in a square grid pattern where the1 n9 P- C, | }
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
( e3 e' H- Y: ^" h e! k# {( V8 uthan 9 mm2 which is more than 1 % of 900 mm2 (30 mm × 30 mm).
. \5 z& }# c X+ U3 u3 p I5 vFor plastic balloons, the thickness requirement in a) applies to double layers of plastic sheeting (i.e. the6 y( G9 j$ i- @& G
thickness is measured without inflating or destroying the balloon).
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O0 D1 R; Q, E8 ^谢谢大家！ |
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发表于 2011-11-17 15:00
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