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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 :
, K( h% j# e/ J5 ^0 E. |( HASTM F963-2008 CL4.12
继续探讨：
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; w! s6 Q" w z% U* f2 C( X: @9 S/ y* cASTM 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
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ISO8124.1 - 2009 MOD 描述得比较详细：: A9 z; @7 {8 u0 `$ _3 i# i( u; {
Flexible plastic film or flexible plastic bags without backing and with a minor dimension of > 100 mm and used. V0 S. h& v' l3 F5 X: c
in toys shall either+ h5 l; W. D* a8 D2 {+ |
a) have an average thickness of W 0,038 mm and individual thickness of W 0,032 mm when tested in
" f# ~3 ?7 B4 a* c# m Vaccordance with 5.10 (determination of thickness of plastic film and sheeting), or
K0 j, w% g4 ^- vb) have perforations with well-defined holes (where material has been removed) of 1 % minimum area on/ W! N# O4 A( d, D h
any maximum area of dimensions 30 mm × 30 mm. See Figure 9.( v o1 u$ z8 B5 s# z# M/ r# _
NOTE The requirement in 4.10 b) can be fulfilled by having 3,4 mm diameter holes in a square grid pattern where the
- T( G2 l! y% E1 V/ Dvertical 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
' H. O( z6 P4 c" M" f1 Uthan 9 mm2 which is more than 1 % of 900 mm2 (30 mm × 30 mm).
9 w: O5 }# p0 K% Z" oFor plastic balloons, the thickness requirement in a) applies to double layers of plastic sheeting (i.e. the8 `5 O7 I* O1 ~6 R1 m
thickness is measured without inflating or destroying the balloon).
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