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引用第9楼03411007于2011-11-17 14:59发表的 :
6 d* {& i$ K- b* \ASTM F963-2008 CL4.12
( a. D7 J) O" T. `6 Z* j3 {继续探讨：$ f3 X. m5 M, Z5 q
- Y* W, u7 Z+ Q3 OASTM 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
+ ]$ J4 e( J3 z: @4 j
b% o6 z3 P( O* J6 O5 CISO8124.1 - 2009 MOD 描述得比较详细：; I. }. T) b1 e" o' s
Flexible plastic film or flexible plastic bags without backing and with a minor dimension of > 100 mm and used) A' e( p8 T0 k' |0 y3 x l, U5 h
in toys shall either
( F1 u( k0 t4 z/ F/ T. T u0 K1 Oa) have an average thickness of W 0,038 mm and individual thickness of W 0,032 mm when tested in
2 R3 @0 q2 N* m+ [accordance with 5.10 (determination of thickness of plastic film and sheeting), or, Y; Y) ^; p$ g3 F
b) have perforations with well-defined holes (where material has been removed) of 1 % minimum area on
0 N+ ?5 |/ m: F% a2 m Hany maximum area of dimensions 30 mm × 30 mm. See Figure 9." g$ d* B8 K6 e3 n& t1 \ P
NOTE The requirement in 4.10 b) can be fulfilled by having 3,4 mm diameter holes in a square grid pattern where the
3 C( r. L4 `0 \6 H1 y' nvertical 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) ?$ g2 A7 k2 C' n2 S& f" `
than 9 mm2 which is more than 1 % of 900 mm2 (30 mm × 30 mm).
0 k& o6 H/ I N; aFor plastic balloons, the thickness requirement in a) applies to double layers of plastic sheeting (i.e. the
1 _/ J( W: `( Z) g8 U5 mthickness is measured without inflating or destroying the balloon).6 \$ E! P2 }" `
6 I% V; q2 r3 S. N9 ^1 j" K谢谢大家！ |
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发表于 2011-11-17 13:06
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