文档介绍：Confidential - Do Not Distribute © 2006 Mattel, Inc. All Rights Reserved.
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S IN TOYS 含有磁石的玩具
Prepared By: P. W. Chan
Date: Oct., 2007
Confidential - Do Not Distribute © 2006 Mattel, Inc. All Rights Reserved.
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S IN TOYS
PROBLEM OF S IN TOYS 磁石在玩具中的问题
The Hazard 危险
When small, powerful s are swallowed separately, they can attract across intestinal walls and produce perforations, infection and death. 当细小强力的磁铁被分别吞下, 将会透过肠内壁相吸而产生穿孔,感染或死亡.
From the summer of 2005, there were at least 11 incidents of intestinal perforation due to s in toys. 自从2005年夏季以来,已经至少有11个肠道穿孔案例是由玩具中的磁石引起.
Analysis of incident data revealed that the s involved in the incidents were 分析数据显示事件中涉及的磁石是:
Powerful, rare-earth s of neodymium, iron, boron construction (NIB).强力的NIB磁石.
The s were small and easily swallowable. 细小而容易吞下的磁石.
Confidential - Do Not Distribute © 2006 Mattel, Inc. All Rights Reserved.
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S IN TOYS
HOW THE MARKET REACT市场上的反应
The CPSC issues a safety alert (美国)消费品安全委员会发出安全警告.
ASTM workgroup using the incident data, date analysis, expert opinions and other information to determine the requirements. 美国材料实验协会的工作小组就事件数据,数据分析及专家意见去确定磁石的要求.
French market required following marking on toy or package 法国市场要求玩具或包装上有以下标签
≪ Attention ! Risque de lesions digestives graves si des aimants sont avales ! ≫
European standards body CEN has established a taskgroup for s. This taskgroup will develop a standard for Europe for s that eventually be included in EN 71-1. 欧洲标准团体CEN已经成立专责小组负责磁石问题. 这个专责小组将会为欧洲制订磁石标准并纳入EN 71-1.
Confidential - Do Not Distribute © 2006 Mattel, Inc. All Rights Reserved.
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S IN TOYS
CURRENT STANDARD (ASTM F963-07)现行标准
s with the specified size and strength should be restricted. 指定尺寸和强度的磁石会被限制使用.
Strength : Flux index > 50 强度:磁通系数>50
Flux index – Flux density2 x Pole surface area, where Flux Density is in kilo Gauss (kG) and Pole surface area is in mm2磁通系数–磁通密度2 x 磁极表面积, 磁通密度单位千高斯(kG), 面积单位是平方厘米(mm2)
Size: Not fit entirely inside the following gauges 尺寸:不能完