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引用第9楼03411007于2011-11-17 14:59发表的 :
1 J. z/ o/ E8 F t3 f, MASTM F963-2008 CL4.12
继续探讨：6 b6 {+ q$ S3 @
; z0 H& e2 k" B3 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
: s2 t/ D9 @2 ?* ^4 \% z m6 k k+ c
ISO8124.1 - 2009 MOD 描述得比较详细：
2 p. t9 G+ |1 U( l# lFlexible plastic film or flexible plastic bags without backing and with a minor dimension of > 100 mm and used
6 I1 o# g* W. fin toys shall either8 \6 W0 F9 R' p& e
a) have an average thickness of W 0,038 mm and individual thickness of W 0,032 mm when tested in+ G8 ]% Z: V' {2 [! S6 b# U
accordance with 5.10 (determination of thickness of plastic film and sheeting), or- u! C5 n: ?3 P/ K0 G1 Q4 D' E5 Q
b) have perforations with well-defined holes (where material has been removed) of 1 % minimum area on, k3 T1 `& K$ l* W1 Q
any maximum area of dimensions 30 mm × 30 mm. See Figure 9.
1 o8 t" I! B$ `NOTE The requirement in 4.10 b) can be fulfilled by having 3,4 mm diameter holes in a square grid pattern where the
6 b' j3 @) e+ ]' Gvertical 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
0 A' J4 g7 z/ G Y# Pthan 9 mm2 which is more than 1 % of 900 mm2 (30 mm × 30 mm)., @ i, a& |5 s Y
For plastic balloons, the thickness requirement in a) applies to double layers of plastic sheeting (i.e. the0 {' Y# C# E U
thickness is measured without inflating or destroying the balloon).
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% P" l3 Y- ^6 Y& x$ n谢谢大家！ |
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发表于 2011-11-17 13:06
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