ISO Amendment for Migration of Certain Elements

ISO has published the amendment ISO 8124-3:2020/Amd.1:2023 for the migration of certain elements concerning toy safety. This revised standard is effective immediately.

In March 2023, the International Organization for Standardization (ISO) published its first Amendment 8124-3:2020/AMD.1:2023 ‘Safety of Toys – Part 3: Migration of certain elements – Amendment 1: Limits for boron and other elements in slime, and barium in modeling clay’.

The revision determines the migration of certain elements from toy materials and parts including antimony (Sb), arsenic (As), barium (Ba), cadmium (Cd), chromium (Cr), lead (Pb), mercury (Hg), selenium (Se) and boron (B). The maximum acceptable element migration limits of toy materials are listed in the below table.

This new revision of the standard includes some additional important updates:

- Adds a new definition of “slime” (section 3.13)

- Introduces new meaning of modeling clay and putty (section 3.14)

- Includes new set of analytical corrections including boron (section 4.2)

- Clarifies slime is not to be dewaxed (section 9.8.1)

- Provides rationale to raise soluble barium limit in modeling clays from 250 mg/kg to 350 mg/kg and the justification for the maximum level of boron in modeling clay, putties, and slimes (Annex D, D3)

The revised standard is effective immediately.

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