ICS EVIDENCE GOVERNANCE NOTEREGISTER · 2026

EVIDENCE BOUNDARY & STANDARDS DISPOSITION

Tin migration in canned and acidic foods

Treat packaging format and acidity as part of the certification cell, preserve the acute gastrointestinal endpoint, and avoid generalizing an agricultural contaminant model to a contact-material pathway.

The controlling scientific record is the public Heavy Metal Index synthesis, supported by 5 named anchor sources and expressed for Tin.

ICS does not reproduce the source extraction here. Keeping the evidence on the independent index preserves source-level methods, units, species, basis, uncertainty, and review state. This note records only the institutional consequence of that evidence.

Treat packaging format and acidity as part of the certification cell, preserve the acute gastrointestinal endpoint, and avoid generalizing an agricultural contaminant model to a contact-material pathway.

This disposition may change taxonomy, analyte coverage, test basis, surveillance priority, disclosure, or claim language. It does not allow a market occurrence percentile or a dramatic single study to become an initial certification value.

The finding is published in two additional authority layers: the HMI evidence record and the HMTc certification interpretation. Distribution should prioritize manufacturers, packaging teams, laboratories, retailers while preserving those distinct roles in headlines, briefings, interviews, and social posts.

Audience

manufacturers · packaging teams · laboratories · retailers

SUGGESTED CITATION

Pendergrass, K. (2026). “Tin migration in canned and acidic foods.” ICS Evidence Governance Notes. ICS-EGN-2026-002. Institute of Contaminant Standards.

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