水珠玩具立下联邦安全标准：2017至2022年约6,300名儿童因吞食水珠进急诊
五颜六色的水珠看着像糖，吞下去却能在身体里继续膨胀。美国消费品安全委员会（CPSC）已经批准针对水珠玩具的联邦安全标准，委员会以2比0表决通过，新规的目标是降低儿童吞食、塞进耳鼻或吸入、噎住水珠造成的伤亡风险。
水珠的定义是遇液体膨胀的吸水聚合物，材料包括聚丙烯酰胺和聚丙烯酸酯。新规立了三道线：设定膨胀尺寸上限，让水珠就算被吞下也长不到造成堵塞的大小，也减少塞进耳鼻或被吸入的伤害；限制丙烯酰胺的允许含量，降低毒性风险；要求醒目、措辞强硬的警告标签。CPSC 给出的数据是，2017到2022年间，全美急诊估计处理了6,300例与水珠吞食相关的伤害，2023年还有一名10个月大的女婴因吞食水珠死亡的报告。
标准生效需要一个过程，CPSC 说新规在《联邦公报》刊登后90天生效。在此之前，家里的防护要靠自己：CPSC 建议把水珠从有幼儿的环境中移走，存放在幼儿够不到的密封容器里，不要让孩子无人看管地玩水珠，水珠填充的玩具一旦有珠子漏出就丢弃，玩完要清扫滚散的珠子。
还要分清一条界：有些水珠产品根本不是按儿童玩具卖的，不在这条新规的范围内，但对幼儿的危险一样存在，同样要收离孩子生活和玩耍的空间。（来源：美国消费品安全委员会）
Water Bead Toys Now Have a Federal Safety Standard: About 6,300 Children Were Treated in Emergency Departments From 2017 to 2022
Water beads look like candy, and they keep expanding after they are swallowed. The U.S. Consumer Product Safety Commission (CPSC) has approved a federal safety standard for water bead toys, by a vote of 2 to 0, aimed at reducing the risk of injury or death when children ingest water beads, insert them into an ear or nose, or aspirate or choke on them.
A water bead is defined in the rule as a variously shaped liquid absorbent polymer, made of materials such as polyacrylamide and polyacrylate, which expands when soaked in liquid. The standard sets three lines of defense: a maximum expansion size limit, so a swallowed bead cannot grow large enough to cause blockages or other injuries; limits on allowable acrylamide, to reduce toxicity risks; and strongly worded, easily seen warning labels. CPSC's figures are stark: from 2017 to 2022, an estimated 6,300 water bead-related ingestion injuries were treated in U.S. emergency departments, and there was at least one reported death of a 10-month-old girl in 2023.
The rule takes effect 90 days after publication in the Federal Register, and household precautions matter in the meantime. CPSC advises removing water beads from any environment where young children may be present, storing them in a secure container out of reach, never letting children play with them unsupervised, discarding bead-filled toys if beads start to come out, and cleaning up beads that scatter and roll away after use.
One boundary is worth knowing: some water bead products are not marketed as children's toys and fall outside the scope of the rule, but the hazard to a small child is the same. Those products belong out of the spaces where children live and play as well. (Source: U.S. Consumer Product Safety Commission)
来源：美国消费品安全委员会
发布：GSM·美国（发布链接）
图片来源：图：吸水膨胀后的彩色水珠特写。水珠干时只有小小一颗，遇水会继续膨胀。Wikimedia Commons 图片。 / Photo: A close-up of colorful water beads after absorbing water. Dry beads start tiny and keep expanding in liquid. Image via Wikimedia Commons.
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