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引用第9楼03411007于2011-11-17 14:59发表的 :
2 v3 A7 P% R5 O1 M% s2 j K' eASTM F963-2008 CL4.12
8 U, u' o( o, o/ l5 p' x继续探讨:( w2 S3 {" H) c0 w# _0 v
" t h% ^' Y: Z" i! m: iASTM 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: z# v0 I7 G8 a: D7 K+ J0 |5 |
$ v+ R8 E# O& }. w* u s) H$ ?ISO8124.1 - 2009 MOD 描述得比较详细:
( _9 F# T0 W8 B% aFlexible plastic film or flexible plastic bags without backing and with a minor dimension of > 100 mm and used
$ n- n2 |7 A7 ^9 f2 K6 K- Q- l, Win toys shall either$ l6 S o- n1 }
a) have an average thickness of W 0,038 mm and individual thickness of W 0,032 mm when tested in
5 J/ R- k( a4 l9 I( paccordance with 5.10 (determination of thickness of plastic film and sheeting), or
% t4 E: N9 D! j: T" W& Sb) have perforations with well-defined holes (where material has been removed) of 1 % minimum area on) K$ t% |4 i8 B; y( z. R0 e7 L. E+ W
any maximum area of dimensions 30 mm × 30 mm. See Figure 9.
* r3 J8 O, r. }. F# tNOTE The requirement in 4.10 b) can be fulfilled by having 3,4 mm diameter holes in a square grid pattern where the; \4 A1 y5 B. S) @! s4 E
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$ n8 w2 d8 z; g
than 9 mm2 which is more than 1 % of 900 mm2 (30 mm × 30 mm).4 s) K5 x P" H1 e( k
For plastic balloons, the thickness requirement in a) applies to double layers of plastic sheeting (i.e. the* M& X& A# r! o' R H+ Q7 U' D+ x- _1 F
thickness is measured without inflating or destroying the balloon).9 ?3 `( a1 L5 g$ m! Q
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谢谢大家! |
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