Overview
EN 1811 is the nickel-release method discussed in LGC 2003 for products intended to come into direct and prolonged contact with the skin. In the report’s description, the article is placed in artificial sweat test solution for one week, and dissolved nickel is measured and expressed as µg/cm2/week.
Method Features Preserved
| Feature | Source-grounded description |
|---|---|
| Target analyte | Nickel released from an article into the test solution. |
| Reported unit | µg/cm2/week. |
| Simulant in EN 1811 | Artificial sweat. |
| Exposure time | One week. |
| Analytical instruments named | Atomic absorption spectrometry, inductively coupled plasma spectrometry, and other appropriate analytical methodology. |
| LGC 2003 deviation | Blood plasma and urine were also used as test solutions to model piercing-post conditions during epithelization. |
| LGC 2003 low-level method | HR-ICP-MS was used to reach lower detection limits. |
Relation To Nickel Directive Values
| Value | Context |
|---|---|
| 0.5 µg/cm2/week | Release-rate comparator for products in direct and prolonged skin contact, as described in EU Nickel Directive 94/27/EC. |
| 0.2 µg/cm2/week | LGC 2003 recommended migration limit for all piercing post assemblies when tested under EN 1811. |
Category 1 Boundary
EN 1811 is not a food analytical method and does not report ppb concentrations in food. It can support nickel route-specific context and contact-material regulation pages, but it cannot directly populate Category 1 infant/child food occurrence cells.
References
Works cited in this page’s text, in first-appearance order. This is not the full corpus for this page; it is only what the prose above draws on. The complete set of sources is listed under Sources below. Each title links to its source record, which carries the ingest receipt, the extracted values, and the file hash of the document it was built from.
Update history
The five most recent substantive edits to this page, classified major (evidence or structure moved), correction (a published value or statement was wrong and has been fixed), or minor (narrative rewritten without changing the underlying evidence). Each description is derived from what the edit did to this page; the linked commit is the authoritative record, routine regeneration passes are excluded, and the full version history lives in git. When DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.
| Commit | Date | Change | Description |
|---|---|---|---|
| a8052bb | 2026-08-09 | major | 1 source added; 6 sections added; narrative text revised |