安规网

 找回密码
 注册安规
安规论坛 | 仪器设备 | 求职招聘 | 国家标准 公告 | 教程 | 家电 | 灯具 | 环保 | ITAV 签到 充值 在线 打卡 设备 好友| 帖子| 空间| 日志| 相册
IP淋雨机 | 证书查询 | 规范下载 | 资质查询 招聘 | 考试 | 线缆 | 玩具 | 标准 | 综 合 红包 邮箱 打卡 工资 禁言 分享| 记录| 道具| 勋章| 任务
水平垂直燃烧机 | 针焰 | 灼热丝 | 漏电起痕
IP防水防尘设备|拉力机|恒温恒湿|标准试验指
灯头量规|插头量规|静风烤箱|电池设备|球压
万年历 | 距元旦节还有
自2007年5月10日,安规网已运行
IP淋雨设备| 恒温恒湿箱| 拉力机| 医疗检测设备沙特Saber 埃及COI 中东GCC|CoC直接发证机构水平垂直燃烧机|灼热丝|针焰试验机|漏电起痕试验机
灯头量规|试验指|插头插座量规|灯具检测设备耐划痕试验机|可程式恒温恒湿试验箱 | 耦合器设备广东安规-原厂生产-满足标准-审核无忧
查看: 2943|回复: 12
打印 上一主题 下一主题

[玩具标准] ISO8124

[复制链接]
跳转到指定楼层
楼主
发表于 2012-11-3 09:11 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
广东安规检测
有限公司提供:
本帖最后由 哥哥在家 于 2012-11-3 09:29 编辑
/ E2 `3 h, x. r
, m' p! C7 z  P) z4 ZISO 8124-1 AMD-2 2011 Draft& v4 \% D+ `/ v% b
ISO 8124-1 AMD-1 2011 Draft. z: Q/ K: S! `) c# z! D* l

& d- H. I4 b1 U# J; b

评分

参与人数 1安规金币 +1 收起 理由
fasten + 1 未见附件,请重新上传

查看全部评分

沙发
发表于 2012-11-4 18:52 | 只看该作者
期待正式版! ISO 8124-1:2012) x( n5 `: i7 g
http://www.iso.org/iso/home/stor ... .htm?csnumber=62327
板凳
发表于 2012-11-8 16:47 | 只看该作者
更新哪些内容呀?
地板
 楼主| 发表于 2012-11-12 08:51 | 只看该作者
Contents Page
  d- R) E8 E3 l3 i- d5 W/ A9 D& Z3 Terms and definitions ...........................................................................................................................3& \$ v' [3 s7 E  a) F& X# D) p
4 Requirements........................................................................................................................................3
6 i6 W2 x" v  ~/ ~' y; i- Z% ?4.30 Magnets and magnetic components....................................................................................................3' k5 y" E$ T- ?
4.30.1 Magnetic/electrical experimental sets intended for children over 8 years......................................3/ V$ Y* K/ @- [  C
4.30.2 Toys other than magnetic/electrical experimental sets intended for children over 8 years..........4
0 r) x5 {9 `" P1 Q5 Test methods.........................................................................................................................................4
: _3 Z. J0 S6 y3 m1 M3 ^) L5.31 Tension test for magnets......................................................................................................................5' J0 }0 V" a8 {: H2 }6 x5 G, @
5.31.2 Toys with magnet(s) or magnetic component(s)..................................................................................5
5 c7 |' W8 D8 x2 A5.31.3 Toys that contain one magnet only and a mating metal component...............................................5
! h3 T+ L0 U( z8 h5.31.4 Toys that contain one magnet only and no mating metal component.............................................5
# c  m& c  b8 g! r& i6 ]5.32 Magnetic flux index...............................................................................................................................6# Z9 n, T  |, w0 l/ C
5.32.1 Principle.................................................................................................................................................6
' `* [( M' v. G3 p; H* C6 V3 L5.32.2 Apparatus ..............................................................................................................................................67 y7 l$ B9 P) A  s3 B$ l. p
5.32.3 Procedure ..............................................................................................................................................60 `3 \3 q" @, F2 d4 {* E
5.32.4 Calculation of magnetic flux index ......................................................................................................7! e+ }( f  v- c; }) [, P
5.33 Cycling ...................................................................................................................................................7
4 y" n% j9 d2 B2 v5.34 Impact test for magnets ........................................................................................................................7
- M0 ?( T( I% K5.35 Soaking test for magnets......................................................................................................................7
: }9 Z5 L4 u/ U& C& J& c- S$ zB.2.21 Magnetic/electrical experimental sets for children over 8 years ......................................................8
5 Z0 E: V0 A9 r. ^) ^E.44 Magnets .................................................................................................................................................8

本帖子中包含更多资源

您需要 登录 才可以下载或查看,没有帐号?注册安规

x
5#
 楼主| 发表于 2012-11-12 08:52 | 只看该作者
3 Terms and definitions
) x' r8 q& M; u0 H. yAdd the following definitions:; t( t. ^. T% w' j. q. m
3.xx
. S% C8 t) u3 X. w9 t1 k% mmagnetic component
2 g: _* l* F) B( ]any part of a toy which contains an attached or fully or partially enclosed magnet# V% J, I$ w1 C; @- c6 V9 n  J0 i
3.yy4 B5 G. M! w) t8 |  B
magnetic/electrical experimental set
0 M: {/ M1 j. f( Rtoy containing one or more magnets intended for carrying out educational experiments involving both
0 }$ D4 x: n5 L' t$ L4 y+ v, S" tmagnetism and electricity
. N& r8 x( }' z! h+ C3.zz) k- A# c! P$ m6 D3 v; ~. }
functional magnet in electrical or electronic components of toys
- r7 N. `, g2 x9 o8 x5 Rany magnet necessary for the function of motors, relays, speakers and other electrical or electronic
2 o* v" a' H5 H3 c5 pcomponents in a toy where the magnetic properties are not part of the play pattern of the toy
4 i7 U* Z, S1 v' [4 Requirements% m) I! P1 c2 c7 F1 C3 ^+ l% h, P9 Z7 k
Add the following requirements:
7 c& x% @9 ]1 Z7 d8 r4.30 Magnets and magnetic components
& z- ^1 V8 ]  ~) K; `7 z# u( S; jSee Clause E.44.
! ^0 ^+ P6 m& l7 z0 S4.30.1 Magnetic/electrical experimental sets intended for children over 8 years
7 M; U8 r. G* E( }' |0 eMagnetic/electrical experimental sets intended for children 8 years and over that contain magnetic
7 j. Q/ K* D6 H+ n; b- Wcomponents shall carry a warning (see B.2.21 for guidance) if they both:
8 Y* a) q- n8 V0 G# h7 Q8 D, q$ n- have a magnetic flux index greater than 50kG2mm2 (0,5 T2mm2) when tested according to 5.32 (magnetic2 M2 W% J! `6 K) W  Q
flux index). \6 P1 e0 C  V; v6 `) ]
- fit entirely in the cylinder when tested according to clause 5.2 (small parts test)
" t4 r0 F$ @+ u" E; M% hNOTE Magnetic/electrical experimental sets intended for children under 8 years shall comply with the requirements in
/ L5 u# t: W. ^: ~  b% b1 `+ d4.30.2 (toys other than magnetic/electrical experimental sets)., a9 `: f5 W1 U
These requirements do not apply to functional magnets in electrical or electronic components of toys.
6#
 楼主| 发表于 2012-11-12 08:53 | 只看该作者
4.30.2 Toys other than magnetic/electrical experimental sets intended for children over 8 years# R# G1 S* n( S, m7 a3 x" S
a) Any loose as received magnet(s) and magnetic component(s) shall either have a magnetic flux index less7 v+ B! _6 d5 w5 {- W( L& ?
than 50 kG2mm2 (0,5 T2mm2) when tested in accordance with 5.32 (magnetic flux index), or shall not fit
2 S% ^/ u1 Z! P. D9 j4 \entirely in the cylinder when tested in accordance with 5.2 (small parts test).
! o0 j( ~. F3 p7 B* k: Rb) Wooden toys, toys intended to be used in water and mouth pieces of mouth-actuated toys with magnets
7 q9 e, V6 y+ }or magnetic components shall be tested in in accordance with 5.35 (soaking test for magnets) before! w0 {) |( I. P: G# m+ J2 X
being tested in accordance with 4.30.2 c) below.1 E1 I( K( ^4 K. e" [6 [8 h6 K7 U+ }/ J
c) The following tests shall be carried out in the prescribed order on all unique magnetic component(s). The! H& \, s( L6 ~! ]) Q# D0 w
components used for this testing shall not have been previously subjected to normal use and reasonably2 _! `5 q- b% p" r) ]* k( K
foreseeable abuse tests. Any magnet(s) and magnetic component(s) that become liberated from a toy, or% Y5 ]# [$ r: ?8 r3 W" W
from a loose as received magnetic component shall either – when tested according to the tests listed
+ D/ W0 r8 k2 d) F( v0 ^  w# rbelow - have a magnetic flux index less than 50 kG2mm2 (0,5 T2mm2) when tested in accordance with
3 r. _- V8 z7 [# ~% n! J6 v5.32 (magnetic flux index), or shall not fit entirely in the cylinder when tested according to 5.2 (small parts
! m' K7 v9 [) g+ N6 D; }, ^/ Ntest).
& q' k3 s5 P1 g- |6 Q, o⎯ 5.33 (cycling)
7 t/ i8 {% M3 C, V+ S⎯ 5.24.2 (drop test) or if applicable, 5.24.3 (tip over test for large and bulky toys)  ]3 S! d5 h; W+ L2 t: F, e
⎯ 5.24.5 (torque test)
9 v9 E9 _8 W+ P+ F! B, x⎯ 5.24.6.1 (tension test, general procedure)
3 |' O) y; y' g8 N⎯ 5.24.6.2 (tension test for seams in soft-filled (stuffed) toys and beanbag-type toys), if applicable
0 P3 ~0 |. x% d: m⎯ 5.34 (impact test for magnets). |1 K; \: u) G7 e9 ^
⎯ 5.24.7 (compression test), for magnets that are accessible but cannot be grasped (as specified in7 w, d  c6 U: p* q/ \. o! X
5.24.6.1 (general procedure)
0 \+ C* q* K( g9 b4 J7 W8 G8 z⎯ 5.31 (tension test for magnets)): o& K$ c- Y7 Y
NOTES
, `: W2 ]% U) Y" x; o" {1 Examples of unique magnetic components are rods of different sizes or shapes containing magnets.
$ ]# b. k5 N9 m% `8 w! {/ b2 If the toy contains one magnet, the component holding the magnet is considered to be a unique component.5 W' R5 J: S0 b- a( e
3 An example of a magnet that is accessible but cannot be grasped is a magnet that is recessed.
$ W5 @* a2 T) X: @" }* z- MThese requirements do not apply to functional magnets in electrical or electronic components of toys
9 C( Q/ r2 {4 W, `3 R5 Test methods+ \! p; i  ^' V9 J  h* L
Replace the second paragraph of clause 5.14 (impact test for toys that cover the face) with the following:
& j; @9 J# n6 BDrop a steel ball of diameter (16 ± 0,15) mm and mass of (16,9 ± 0,7) g from a height of (130 ± 0,5) cm onto
: n+ C# Q' @6 l* c+ k) y. H4 [the horizontal upper surface of the toy in the area that would cover the eyes in normal use.7 p1 w: _: I# U
Add the following new note to clause 5.24.1 (reasonably foreseeable abuse tests, general)4 w: O; }( K, q. W2 L2 C# Z
NOTE: The tests according to clause 4.30.2 are carried out in the order specified in the clause, on a toy or+ Z; _! H, R! M& e3 N  ?
part of a toy that has not been previously tested according to this clause.+ R. c( f5 g& a6 r# u0 x
Add the following test methods:( K/ t4 z9 z3 {
--`,`,``,,`,```,```,,````,,`,,`-`-`,,`,,`,`,,`---
7#
 楼主| 发表于 2012-11-12 08:53 | 只看该作者
5.31 Tension test for magnets; I  i5 K6 T1 g$ v( ]# t: x
See 4.30.2 c).
, H- X' }# \6 E1 d+ o" i5.31.1 Principle
- J$ L, H( g/ i# `+ }These tests simulate the intended or reasonably foreseeable play pattern. It is recognized that toys may
0 f; x3 c1 C( _3 p3 Ocontain a single magnet or a combination of magnets, magnetic components and/or metal mating parts and
3 @; X. g. I3 K* G+ I: ~0 j1 uthe tests are designed to simulate a reasonably foreseeable play pattern using these components to attach
: d- {3 U% [) Z$ k+ e0 M1 [* S5 Dand detach the magnetic parts.
5 I2 Y* S2 k0 \6 I0 kFor toys that contain more than one magnet/ magnetic component, the test specified in 5.31.2 (toys with
: k9 B4 P" C9 K3 x# |/ `magnet(s) or magnetic component(s)) shall be carried out unless it is not possible to perform the test without
4 q* V8 w3 n! z# T% O7 L# Fdamaging the toy. In the latter case, the test shall be carried out using the reference disk, as described in9 S# f0 D" u8 b: ?- ^& g; a+ P( y
5.31.4 (toys that contain one magnet only and no mating metal component).; |/ u  p7 M9 M7 t7 M/ R& s- ]
NOTE: An example of a case where it is not possible to perform the test in 5.31.2 with magnet(s) or magnetic
& _0 U4 ?: g) f1 A" Xcomponent(s) without damaging the toy, is a toy figurine with one accessible but non-graspable magnet in each foot.$ K# h; F5 A* p4 W
Toys that contain one magnet only and a mating metal component shall be tested according to 5.31.3 (toys
8 z  l: J  F0 ?+ ?# ]' othat contain one magnet only and a mating metal part).; W9 f/ W( _5 J( d$ }+ Q8 E
Toys that contain one magnet only and no mating metal component, shall be tested according to 5.31.4 (toys
2 Q+ }# s& C# X1 Q2 r" ~! Q% zthat contain one magnet only and no mating metal component), since this simulates a play pattern where the
& U; p% K7 i. n. m" E5 K6 S8 C0 W7 htoy is attached and detached to a surface that is not delivered with the toy.% L2 I+ [9 x& M! D( t  z# s
5.31.2 Toys with magnet(s) or magnetic component(s)
: A& C, H% B# U1 M- u- m' xIdentify the magnet or magnetic component in the toy that is most likely to be able to detach. The identified' D" Z4 J  p. ?2 U
magnet or magnetic component shall be subjected to the tension test for magnets.* q6 x* Q% W9 J  l" c+ d! f
If it is not possible to determine which magnet or magnetic component(s) in the toy is most likely to be able to
& g- Y$ {1 M, y' s: {& Y" odetach the magnet under test, it is permissible to repeat the test with another magnet or magnetic component; I. \( ]* u; h" ^1 ]; J" ]* P
from the toy., N. f2 G! r, V
Without damaging the toy, place the magnet or magnetic component in the orientation of attraction, as close# |8 c' J# n( g3 ]- M- T' r& b9 ^# ]) ^
as possible, making contact if possible, to the magnet to be tested. Gradually apply a pulling force to the
9 y, o, l1 o# q) Q/ v0 k$ s+ C, bmagnet/magnetic component until it separates from the magnet under test. Perform the test 10 times or until0 w  |* m5 V( y: n
the magnet under test is detached from the toy, whichever occurs first.- p- ^  M5 l# B1 n" }, s$ R! [
Repeat the procedure for any other magnet that in accordance with 4.31.2 (toys other than magnetic/electrical
* [$ Q- K: u/ r: qexperimental sets intended for children over 8 years) shall be subjected to the tension test for magnets.
7 I% P$ E. P* y0 P5 v& {7 z! G/ a5.31.3 Toys that contain one magnet only and a mating metal component
6 }8 @6 H+ P. C3 SWithout damaging the toy, place the metal components as close as possible, making contact if possible, to the4 C5 W. K" N" S& ~- p
magnet to be tested. Gradually apply a pulling force to the metal component until it separates from the' {4 X4 j# H! [  \
magnet under test. Perform the test 10 times or until the magnet under test is detached from the toy,
$ U& r+ c, P% w# v  o. b! H1 k, _2 Lwhichever occurs first.
8 R5 c5 ]) O( \- g( m- g4 @5.31.4 Toys that contain one magnet only and no mating metal component
3 f) a, x: a! `' |# f" @( I# L5.31.4.1 Apparatus
+ L( C( M/ C0 R' b' B0 y" DNickel disc with a minimum nickel content of 99 %, and having the following dimensions:# J- F: b6 ^8 x7 v0 S
- diameter: (30 ± 0.5) mm
5 R7 J) O" q- @1 U; r' \! i- M- thickness: (10 ± 0.5) mm
8#
 楼主| 发表于 2012-11-12 08:53 | 只看该作者
5.31.4.2 Procedure9 X" O" u/ |+ t( k% o
Without damaging the toy, place the flat part of the disc as close as possible, making contact if possible, to the# b' a9 O, v5 q0 `5 W/ R( v
magnet to be tested. Gradually apply a pulling force to the disc until it separates from the magnet under test.0 f& O  U, m( F* Y/ B7 b+ h
Perform the test 10 times or until the magnet under test is detached from the toy, whichever occurs first.
2 h4 i! X1 V8 M, Y$ Z8 k& k0 g# u5.32 Magnetic flux index; H8 x  B% g9 t- u0 A# Q
See 4.30.1, 4.31.2 a) and c).2 E' x# f3 I0 t; n. |
5.32.1 Principle
6 u, x& p/ i% s5 f; ZThe magnetic flux index is calculated based on the results from measurements of the flux density and the pole
% v3 x9 |0 u# }( [/ I: P9 T! gsurface area.
: Q( Z' [2 ^1 I- E5.32.2 Apparatus8 R: G0 ?$ o3 n3 x
5.32.2.1 Direct current field Gauss meter, capable of determining the field to an accuracy of 5 G.
* ]" W/ E* T" RThe meter shall have an axial type probe with1 R" F$ Q9 E3 ~' F( b
- an active area diameter of (0,76 ± 0,13) mm
5 s" W, v6 ?6 z& G- a distance between the active area and probe tip of (0,38 ± 0,13) mm. A; I0 z1 N5 H' m% M
5.32.2.2 Calliper, or similar device with an accuracy of 0,1 mm.
, Q( r0 o7 X7 H9 g2 W& R, |5.32.3 Procedure" ^) T8 |  N  V  T% X" T) B: R
5.32.3.1 Measurement of flux density8 \' F# Z0 e, L
Identify the surface of the magnet that is the pole.
$ w# D7 a2 K+ E: r: R- LPlace the tip of the Gauss meter probe in contact with the pole surface of the magnet. For a magnetic- X' u& ^$ t' o: ~2 t
component (where the magnet is fully or partially imbedded in part of the toy), place the tip of the probe in
: g* ?/ ~  o( j5 s$ mcontact with the surface of the component.
7 d4 p8 y* R$ m" T$ yMaintain the probe in a position perpendicular to the surface.: j+ Y( W3 O6 n
Move the probe across the surface to locate the maximum absolute value of the flux density. Record the* B: G* R5 y5 X+ }) p& u- N- K6 j
maximum absolute value of the flux density.+ L3 P, D5 }$ o# z7 g% U4 Q
NOTE Since the meter can read both negative and positive values, the absolute value is used for calculations.! A6 q7 }- A. `9 H( z
5.32.3.2 Measurement and calculation of the pole surface area" `+ h- H; J- I* w& S% D
If the magnet is imbedded/attached as part of a magnetic component, extract the magnet from the component,
- O$ I2 {/ s# @even if it is necessary to break the toy.
8 i: G6 f0 f! H% k' I! XIf the pole surface of the magnet is flat, measure the dimensions with an accuracy of ± 0,1 mm and calculate4 L' j4 |3 _3 |$ J* c4 I
the area using the appropriate geometric formula.
& r8 w! J& W' uIf the pole is not flat, (for example hemispherical) measure the maximum diameter of the magnet
5 P4 r7 v9 y/ `perpendicular to an axis through the magnetic poles (see Figure XX), with an accuracy of ± 0,1 mm and/ g, Y& X3 g& m- ~1 W9 X+ Z
calculate the area of the corresponding cross section. For multi-pole magnets, measure and calculate the' X; l# _5 P6 p3 q% |
area of the largest single pole, which can be identified using magnetic field viewing film or equivalent.
9#
 楼主| 发表于 2012-11-12 08:54 | 只看该作者
NOTE An example of a multi-pole magnet is a rubberized/plastoferrite magnet, consisting of multiple strips or poles.
" L8 U" i/ `3 ]$ g, C- iFigure XX – Maximum diameter of magnet with a non-flat pole- l9 o/ W& O  L. b7 U
Key
+ f- z1 g  s, ~; b$ D8 G" F  o1 maximum cross-section perpendicular to the axis
9 I0 l6 d  u$ @. l% ^/ L0 I! \2 axis through the magnet poles( J) ]$ S# y: d+ N: r# ]
5.32.4 Calculation of magnetic flux index( v$ d# B# F5 m* A2 ?
The flux index (kG2mm2) is calculated by multiplying the calculated area of the pole surface (mm2) of the! o) N+ T8 {2 T
magnet by the square of the maximum flux density (kG2).3 d4 i4 h# P2 v
5.33 Cycling
$ P3 o6 m/ e- j/ i5 k5 RSee 4.32.2 c).
- p  v2 E4 T+ B. x4 ~$ X$ N0 l( QTen cycles as described below, shall be performed on the as-received magnet(s) or magnetic component(s).
3 X3 o7 o! Z+ c8 @! K  s: P0 `/ zThe magnet or magnetic component shall be brought together to a distance that initiates magnetic attraction,
1 G+ v6 Q, T, C$ xbe released, and then pulled apart to the distance where magnetic attraction ceases. Each attachment and) |+ W0 ]$ R& t! d3 r! ^8 w" J& S, p
detachment shall count as one cycle. If no other magnets or magnetic components are provided with the toy,
* P7 _$ t9 p  o8 F9 {the mating metal part or surface, according to the toy’s intended play pattern, shall be used for cycling
0 b7 R3 v$ w; h1 ~0 y; a8 h! q. E5 \purposes. If no other metal parts or surfaces are provided with the toy, the apparatus described in 5.31.4 shall
0 ^6 H; r! e' u" n! s! O2 sbe used for cycling purposes.
* ]7 c4 K- S+ k5.34 Impact test for magnets- a: V& g; d$ s7 P7 t, P
See 4.32.2 c).  r4 f8 a6 A) q/ T8 T
Place the relevant component of the toy in the most onerous position on a plane horizontal steel surface and$ v7 V7 Y8 f9 ~& i  o
drop a metallic weight with a mass of (1 ± 0,02) kg, distributed over a diameter of (80 ± 2) mm, through a! q2 F( u. S; }% v) y2 t
distance of (100 ± 2) mm onto the toy.) ~$ q+ V; ]# c9 c
Determine whether any liberated magnets or magnetic components fit entirely in the cylinder when tested in4 c. S+ V& g( T$ c% K) Y
accordance with 5.2 (small parts test).
5 s2 r9 C6 c  N. U0 I5.35 Soaking test for magnets/ {* r( l- C% y! u" z, X
See 4.30.2 b).
6 N1 l) H4 ]2 `$ U% \. D) `, h  _Submerge the toy or toy component completely in a container of demineralised water at a temperature of (20
8 e5 [: U* e$ D" f  z. Y7 u- `: A! ^± 5) °C for 4 min. Remove the toy, shake off the excess water and keep the toy at room temperature for 10  R7 }* I, N4 c$ a
min.
; g0 F* a) i/ z( e4 |--`,`,``,,`,```,```,,````,,`,,`-`-`,,`,,`,`,,`---
10#
 楼主| 发表于 2012-11-12 08:54 | 只看该作者
Perform the soaking test for a total of four cycles.
/ |7 L8 }7 W9 L" z7 zImmediately after the last cycle, determine whether any liberated magnets or magnetic components fit entirely
) ^5 R" t" \, _* yin the cylinder when tested in accordance with 5.2 (small parts test).
" y+ e1 J/ f  H0 B7 o, R9 m! N) M' uAnnex B Labelling
$ Y- b+ U: H4 B1 Z: ]/ IAdd the following clause:; y6 G1 h. }! f* _# E
B.2.21 Magnetic/electrical experimental sets for children over 8 years
' B; f  f8 E$ {' D/ Q0 E% L" USee 4.30.1 and E.44)! X( p) G8 P, j  e. j! m
The packaging and the instructions for use of magnetic/electrical experimental sets intended for children 8
' y6 I; q3 X% {  f! I2 F" xyears of age or older shall carry a statement comparable or similar to the following.' O3 F5 L4 y" y6 P' G- C5 L
“WARNING! Not suitable for children under 8 years. This product contains (a) small magnet(s).
! Q& j3 c" }- r3 I* _' \Swallowed magnets can stick together across intestines causing serious infections and death. Seek
0 \. T+ s$ Y$ F+ Pimmediate medical attention if magnet(s) are swallowed or inhaled.”
- [  _# |% X* N- `( }& ^Annex E Rationale# A& A7 n/ l  A% [( v
Add the following clause:
' m( l& K; G/ j6 S9 NE.44 Magnets/ ^# q' n. r5 s
See 4.30.- |# w3 b7 m$ D8 u
These requirements are intended to address the hazards associated with ingestion of strong magnets (e.g.
' ~0 c' M4 H( ?( ~, o- qneodymium iron boron type magnets (“NIB”)), that are capable of causing intestinal perforation or blockage.- U2 w) ]( G  u: j# i2 q
These hazards are additional to those associated with small parts such as suffocation or asphyxiation (see
, o( D  ?3 `. q( l7 ^$ V& X0 ~) _E.6). These requirements apply regardless of the age of the intended user.7 B& E# p$ C3 p4 G7 X: @
Magnets found by children can be ingested. If more than one magnet, or one magnet and a ferromagnetic3 l( n7 l. Z4 @/ U8 G3 G: y4 e
object (for example an iron or nickel object) is ingested, the objects can attract each other across intestinal: W( E% M5 s2 P0 E7 P$ N
walls and cause perforation or blockage, which can cause severe injuries that may be fatal.
- P' H- }/ o+ v; pMultiple incidents, including at least one fatality, have been reported involving ingestion of magnets resulting  `. N! ?2 B2 |/ U* n9 b
in perforation or blockage of the intestines. These incidents have involved children younger and older than 3
5 c3 Q) W( X! c7 U' B4 c  d: l' eyears of age. Medical signs associated with intestinal perforation or blockage can easily be misinterpreted
% m6 W9 e& w. s! Bsince many children exhibit only flu-like symptoms. Such misinterpretations have caused delays in the medical
: W7 |6 F. d5 Z1 O8 U$ w* btreatment and led to serious consequences for children.
5 b9 N7 @; J4 Q* f; ZFor the purpose of this standard, magnets or magnetic components that could be ingested are identified using
9 z) T3 ?: A/ b3 ithe small parts cylinder. The small parts cylinder was originally designed to identify small parts in toys
& `- w! {0 x5 M; m# gintended for children under 3 years of age, which are capable of causing suffocation or asphyxiation. It was
1 M- b4 }" d% r1 N$ Lnot designed for identifying objects that can be ingested by older children. The decision to use the small parts
5 F2 v0 k. Q& t1 ]7 T: Dcylinder also for assessment of magnets or magnetic components that can be ingested was made for practical# O& i& E! e: o2 P
reasons: The cylinder is a well known test template and it provides a safety margin since the magnets and
" g# A: P4 O8 ?  R, l& `+ z; |2 g- Zmagnetic components that have been involved in incidents all fit into the cylinder with a large margin. This
: w" k! M4 o: E0 M! Wsame principle has been applied in the requirements for expanding materials.
# m" x9 L. k  V0 Q4 xThe risk of magnets attracting each other across intestinal walls is a function of magnet strength. A limit value
# M9 s( ~0 r, s) {2 e; H* D  Rin the form of a magnetic flux index has been introduced to define what a sufficiently weak magnet is. Analysis
: Z: r* \- k7 h' kof the data indicates that only the small, powerful NIB type magnets have been involved in the known
# i) S; }, i" [% K# Qincidents. Further analysis has determined that magnets with a magnetic flux index less than 50 kG2mm2 (0,54 T0 U+ j5 ?, e( \7 Y2 y: K3 q+ j
--`,`,``,,`,```,```,,````,,`,,`-`-`,,`,,`,`,,`---
您需要登录后才可以回帖 登录 | 注册安规

本版积分规则

关闭

安规网为您推荐上一条 /2 下一条

QQ|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网 ( 粤ICP13023453-10 )

GMT+8, 2024-11-28 16:31 , Processed in 0.083339 second(s), 26 queries .

Powered by Discuz! X3.2

© 2001-2013 Comsenz Inc.|广东安规赞助

快速回复 返回顶部 返回列表