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联合国危险货物运输专家委员会(TDG)第41次会议提案35

发布时间:2012/06/05
来源:基础设施发展司
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Committee of Experts on the Transport of Dangerous Goods and on the Globally Harmonized System of Classification and Labelling of Chemicals

Sub-Committee of Experts on the Transport of Dangerous Goods

Forty-first session

Geneva, 25 June – 4 July 2012
Item 3 (a) of the provisional agenda

Listing, classification and packing:
Proposals of amendments to the list of dangerous goods of Chapter 3.2

Proposal to amend the description, the proper shipping name, and the special provisions for UN 0503 (Class 1.4G) and UN 3268 (Division 9) by an entry on "Safety devices for vehicles"

Transmitted by the Council on Safe Transportation of Hazardous Articles (COSTHA)

Introduction

1. The development of life-saving appliances in the automotive industry has made considerable progress since the introduction of UN 3268. The present range of appliances goes well beyond those listed in UN 3268 and UN 0503. For example, they include a number of elements that are actuated by the electric signal of the crash sensor.

Examples include:

Pyromechanical safety elements which serve to interrupt electric connections. In case of emergency, the main power cable in the vehicle is disconnected from the battery to prevent short circuit and to minimize the risk of fire in the vehicle;

Pyromechanical actuators which are used for active headrests or for pedestrian protection to release special hinges of the engine hood.

2. These safety device designs cannot be assigned to UN 3268 although they are complying with all Class 9 safety requirements when offered for transport.

3. The following proposal initially aims at amending the entry for UN 3268. This will automatically result in corresponding amendments in the entry for UN 0503.

Proposals

4. Appendix B GLOSSARY OF TERMS: the first term and its description (AIR BAG INFLATORS, …) should be amended to read as follows:

SAFETY DEVICES FOR VEHICLES

Articles which contain pyrotechnic substances or dangerous goods of other classes and are used as life-saving vehicle airbags or seat belts or safety devices. Vehicle safety devices are assembled components for separation, locking, or release-and-drive systems."

5. Chapter 3.2 Proper shipping names of UN 0503 and UN 3268 should be amended to read as follows:

"SAFETY DEVICES FOR VEHICLES"

6. Special Provision 235, UN 0503, should be amended to read as follows:

"This entry applies to articles which contain Class 1 explosive substances and which may also contain dangerous goods of other classes. These articles are used as safety devices for vehicles, e.g. life-saving vehicle air bag inflators or air bag modules or seat-belt pretensioners or pyromechanical switches or pyromechanical actuators."

7. Special Provision 280, UN 3268, should be amended to read as follows:

"This entry applies to safety devices for vehicles e.g. articles which are used as life-saving vehicle air bag inflators, air bag modules or seat-belt pretensioners or pyromechanical switches or pyromechanical actuators and which contain dangerous goods of Class 1 or dangerous goods of other classes and when transported as component parts and if these articles as presented for transport have been tested in accordance with Test Series 6(c) of Part I of the Manual of Tests and Criteria, with no explosion of the device, no fragmentation of device casing or pressure vessel, and no projection hazard nor thermal effect which would significantly hinder fire-fighting or emergency response efforts in the immediate vicinity."

8. Special Provision 289, UN 0503 and UN 3268, should be amended to read as follows:

"Safety devices for vehicles installed in vehicles or in completed components such as steering columns, door panels, seats etc. are not subject to these Regulations."

Justification

Under Special Provision 280, the above safety devices shall be tested according to the UN 6(c) Test Series and may not be classified under UN 3268 unless they have passed the test satisfactorily. When this is the case, there will be no safety risk. The most solid proof for the validity of this view comes from the positive experience gained in the world-wide transport of articles already classified under UN 3268.

The above proposal is urgently needed for the international automotive industry so as to enable the industry to secure the global logistic network for supply and production and, in particular, for the supply of individual service outlets. This process has become less and less possible in case of the classification under one of the UN numbers of Class 1.

 

 

 

联合国危险货物运输专家和全球化学品统一分类和标签制度专家委员会

危险货物运输专家分委员会

第四十一次会议

日内瓦, 2012625-74
议程第3 (a)

列表,分类和包装:

对修订3.2章危险货物列表的提案

UN0503(1.4G)UN3268(9) 关于“车辆的安全设备”条目的描述、运输名称和特殊规定的修改提案

由危险物品安全运输理事会(COSTHA)提交

介绍

1. 自从引入了UN3268,救生器材在汽车制造业取得了很大的进展。这些器材目前所涉及到的范围远远超出了UN3268UN0503所列出的范围。比如,包括一些由碰撞传感器电信号所驱动的元件。

例子有:

可以起到中断电连接作用的烟火安全元件。万一有紧急情况,车辆中的主要电缆和电池断开以防短路并将车辆着火的风险降到最低;

用于碰撞主动响应头枕或保护行人的行李箱特殊释放铰链的烟火制动器。

2. 尽管运输时符合所有第9类的安全要求,但这些安全设备设计不能指定为UN3268

3. 下面的提议最初旨在修改条目UN3268,这会相应引起条目UN0503的修改。

提议

4.  附录B    术语汇编:第一项及其描述(气囊充气器,……)应做如下修改:

“车辆安全装置”

装有烟火物质或者其他类危险货物的物品并且用作救生车辆气囊、安全带或安全装置的物品。车辆安全装置是用于分隔、锁定或解除-驾驶系统的组合组件。”

5.  3.2章UN0503和UN3268运输名称应做如下修改:

“车辆安全装置”

6.  针对UN0503的特殊规定235,做如下修改:

“本条目适用于含有第1 类爆炸品并且也可能含有其他类别危险货物的物品。这些物品用作车辆安全设备例如救生用的车辆气囊充气器或气囊模件或安全带预拉装置或烟火开关或烟火制动器。”

7.  针对UN3268的特殊规定280,做如下修改:

“本条目适用于车辆安全设备,例如救生用的车辆气囊充气器或气囊模件或安全带预拉装置或烟火开关或烟火制动器及含第1类爆炸品或其他类别危险货物的物品,并且在作为部件运输时和在这些物品提交运输时已按照《试验和标准手册》第一部分试验系列6(c)进行过试验,结果是装置没有爆炸、装置外壳或压力容器没有碎裂,也没有可能明显妨碍在紧邻处救火或其他应急行动的抛射危险或热效应。”

8.  针对UN0503和UN3268的特殊规定289,做如下修改:

“装于车辆或者在如转向杆、车门镶板、车座等完整部件中的车辆的安全设备不受本规章限制。”

 理由

特殊规定280中,上述安全设备应根据联合国6C)试验系列进行测试,除非通过试验,否则不应归为UN3268。在通过试验的情况下,不存在安全风险。支持这个观点有效性的最有利的证据是分类为UN3268的物品在全球范围内运输时所获得的实证经验。

上述提议是为国际汽车制造业所迫切需要,以便能确保全球物流网络的生产和供应,特别是单个服务销售点的供应。如果分类为一个第1类的UN编号,这个过程实现的可能性就越来越小了。

 

 

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