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Canned seafood (with tin flag)

HMTc standard for Canned seafood (with tin flag) (Seafood, category 6). Values are stated in the product’s native basis — as sold — per the locked methodology. The standard publishes per analyte; an analyte renders a firm limit only when it has cleared all five shipping gates.

  • Standard version: 2.2 (2026-06-09)
  • Methodology: HMTc-10 / P97-clean / P45-dirty (CLAUDE.md Part 19, Governing Principles v2.0)
  • Native basis: as sold
  • Analyte panel: Pb, tAs, iAs, Cd, tHg, MeHg, Ni, Cr-VI, Sn, Al
  • Literature baseline: Heavy Metal Index — canned-seafood (the independent evidence this standard is applied to; one-way citation)

Per-analyte standard

AnalyteIn scopeLimit (native basis)BasisRationaleStatus
Pbnot in scope
tAsnot in scope
iAsnot in scope
Cdyesas soldoutlier-adjudication pending (held provisional until adjudicated)in development
tHgnot in scope
MeHgyesas soldoutlier-adjudication pending (held provisional until adjudicated)in development
Ninot in scope
Cr-VInot in scope
Snyesas soldoutlier-adjudication pending (held provisional until adjudicated)in development
Alnot in scope

Analyte scope

This disclosure travels with the mark so a certified product is never silently uncontrolled on an analyte.

  • Published (firm limit in force): none yet
  • In scope, in development (no firm limit yet): Cd, MeHg, Sn
  • Out of scope for this subcategory: Pb, tAs, iAs, tHg, Ni, Cr-VI, Al

Status: in development. No analyte in this subcategory has cleared all five shipping gates yet. This page reports the current evidence state honestly; it is not yet a published standard. See Program Structure for how a subcategory reaches publication.


HMTc standards are living, versioned documents. This page reflects 2.2 (2026-06-09) as of 2026-06-20. Superseded versions remain at stable URLs so prior citations resolve. The threshold-setting methodology is described in Program Structure.