|
|
楼主 |
发表于 2011-11-17 18:53
|
显示全部楼层
引用第9楼03411007于2011-11-17 14:59发表的 :
* m% Y& J9 C# L) G/ mASTM F963-2008 CL4.12
继续探讨：7 a; i6 d) W, s+ p- }- ~' y
+ w6 P, X2 w( v' M; I
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 M% d- T' m) T
7 z9 n) @5 n6 b3 E# ?
ISO8124.1 - 2009 MOD 描述得比较详细：% e! N. F* s; ~ G" a9 e9 Q
Flexible plastic film or flexible plastic bags without backing and with a minor dimension of > 100 mm and used4 U2 u& `( U' z+ h& z1 W* W
in toys shall either# |1 q% r- r5 D3 V+ C7 i" m
a) have an average thickness of W 0,038 mm and individual thickness of W 0,032 mm when tested in& G7 h9 l7 l& t3 ]* L7 ~. ~
accordance with 5.10 (determination of thickness of plastic film and sheeting), or
: a3 H: U; b) tb) have perforations with well-defined holes (where material has been removed) of 1 % minimum area on
d; ?( ~$ a0 Y, {* b2 @4 F+ w- sany maximum area of dimensions 30 mm × 30 mm. See Figure 9.
' t0 f5 o5 [% e& PNOTE The requirement in 4.10 b) can be fulfilled by having 3,4 mm diameter holes in a square grid pattern where the7 y0 v! D h9 I3 B' x+ k
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' ?4 E2 P3 I% L% ]# {. h9 j0 N
than 9 mm2 which is more than 1 % of 900 mm2 (30 mm × 30 mm).
1 l q: [& V1 q s7 vFor plastic balloons, the thickness requirement in a) applies to double layers of plastic sheeting (i.e. the5 _" W4 y7 g! L, s1 S0 J; I- S6 I
thickness is measured without inflating or destroying the balloon).% P+ u1 n& C9 p3 E# }3 h
" Q/ Q( K# }' [, K3 W3 w
谢谢大家！ |
|
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 )
窥视卡
雷达卡
发表于 2011-11-17 15:00
显身卡
----------------------