|
|
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 :' m7 r/ J( }/ o) T& I+ u
ASTM F963-2008 CL4.12
% a3 }$ l3 N! \" w) ]继续探讨：& F k: n5 z* n4 E3 j( {
5 J8 ?/ T0 b5 ]0 K& jASTM 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' v V8 f1 P2 o% W
6 {' w, \2 r& C: q; T0 ?
ISO8124.1 - 2009 MOD 描述得比较详细：4 U# ~& g7 a# h8 Z$ a1 f
Flexible plastic film or flexible plastic bags without backing and with a minor dimension of > 100 mm and used
* Z5 F% t6 d4 q: r8 Pin toys shall either$ T/ s" j5 @' e
a) have an average thickness of W 0,038 mm and individual thickness of W 0,032 mm when tested in7 b9 ~0 r* n" L4 |# L# C
accordance with 5.10 (determination of thickness of plastic film and sheeting), or
' I' ]6 P" m3 m& hb) have perforations with well-defined holes (where material has been removed) of 1 % minimum area on
$ T5 }% n" v" ~) N% h9 dany maximum area of dimensions 30 mm × 30 mm. See Figure 9.
. n/ @# ~+ I% Y; N: {NOTE The requirement in 4.10 b) can be fulfilled by having 3,4 mm diameter holes in a square grid pattern where the1 E- k6 o7 E; H) ?
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' h0 m7 e, {8 U' D e" _
than 9 mm2 which is more than 1 % of 900 mm2 (30 mm × 30 mm).# J/ d, A% n4 g4 u- n
For plastic balloons, the thickness requirement in a) applies to double layers of plastic sheeting (i.e. the
& q2 Z! Q# @6 P; H8 Bthickness is measured without inflating or destroying the balloon).
, t; ?- t1 u. J+ m$ P/ ^
$ ^9 ~, K6 P) k6 M谢谢大家！ |
|
/1 
|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
----------------------