be permitted for use in toys if they fit entirely within the small parts cylinder. By introducing the flux index limit,
the risk of injuries with magnets will be minimized. As additional data becomes available in the future, this limit
will be assessed to determine whether it is still appropriate.
Two or more magnets can attract each other and form a compound magnet with a higher flux index than each
single magnet. The flux index will not double if two equally strong magnets are attracted to each other and the
increase in flux index will be relatively smaller for every new magnet that is added and will depend on
magnetic material, shape, cross-section, etc. Ingestion of multiple magnets has only been observed with
stronger magnets and there is no incident data regarding weak magnets close to the flux index limit forming a
(stronger) compound magnet. Therefore, no additional test for compound magnets is introduced.
Toys that contain magnets and which can be expected to become wet during normal and foreseeable use are
subjected to a soaking test to ensure that glued magnets do not detach when the toy is wet. Also, wooden
toys are subjected to the test since the properties of wood (such as size of holes) can change even with
changes in air humidity.
In some cases magnets are recessed and therefore, cannot be subjected to the normal torque and tension
tests. Examples of toys have been found where a magnet has become detached by another magnet. A
tension test for magnets has been introduced to minimize the risk that such magnets become detached during
normal and foreseeable play.
For toys that comprise only one magnetic component, that toy is considered to meet the definition of a
magnetic component (see 3.xx).
Functional magnets in toys are not considered to present the same risk as magnets that form part of the play
pattern. The use of magnets in these components may not be recognized, as they will be present inside
electrical motors or in relays in electronic circuit boards. None of the reported incidents has been linked to
magnets released from electrical or electronic components.
Magnetic/electrical experimental sets that are intended for children over 8 years of age are excluded from the
requirements in 4.30.2 and instead they are required to carry the prescribed warning. The exception applies to
only the more advanced experimental sets that include building of electrical motors, loudspeakers, doorbells,
etc., i.e. products that require both magnetism and electricity for their function. Magnetic/electrical
experimental sets that are intended for children under 8 years are, therefore, required to comply with the
requirements in 4.30.2..
--`,`,``,,`,```,```,,````,,`,,`-`-`,,`,,`,`,,`--- LZ你不会是打算把它全部Copy过来吧？？？ 学习了:)
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