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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 :
, n- X9 |/ Q3 o h5 {& BASTM F963-2008 CL4.12
( U0 d* h7 o; h+ `- F# _5 @继续探讨：
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5 H" ^8 @" z6 \ q- j' z! sASTM 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6 b. E1 k# c3 g9 a! N8 U; S
+ U. T1 j% k( y
ISO8124.1 - 2009 MOD 描述得比较详细：* Q5 G0 I! O5 y4 _
Flexible plastic film or flexible plastic bags without backing and with a minor dimension of > 100 mm and used
8 J; d g7 f/ u* [' g) V1 ain toys shall either& v% U$ I4 ~8 H4 H: E$ M# H+ p( U! M
a) have an average thickness of W 0,038 mm and individual thickness of W 0,032 mm when tested in; ?7 c8 R% L( M7 Q0 @+ _+ Y
accordance with 5.10 (determination of thickness of plastic film and sheeting), or1 A& }+ k6 L/ B/ `
b) have perforations with well-defined holes (where material has been removed) of 1 % minimum area on
; m% c. t; e4 I2 j7 c9 Many maximum area of dimensions 30 mm × 30 mm. See Figure 9.
! ~( i! ]# Z7 n7 m) h# p8 QNOTE The requirement in 4.10 b) can be fulfilled by having 3,4 mm diameter holes in a square grid pattern where the
6 X' c0 x, ^" wvertical 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. E% I; `6 D! B% X1 F
than 9 mm2 which is more than 1 % of 900 mm2 (30 mm × 30 mm).
0 }+ ^- f2 a' x: K dFor plastic balloons, the thickness requirement in a) applies to double layers of plastic sheeting (i.e. the
p8 t' |; t4 kthickness is measured without inflating or destroying the balloon).
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谢谢大家！ |
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