Ounce (troy)

Scope and distinctions

Named mass convention; do not infer avoirdupois/troy or short/long identity from the unqualified symbol.

Available operations

UUCE executable Preview · Use cx:oz_tr with a compatible unit and a pinned snapshot.

No legacy converter is linked for this definition.

Verification scope

UUCE conversion capability

units.convert@0.1.1 · VERIFIED

Production binding at publication

CURRENT

The definition lifecycle describes this registry entry. CVP status describes the conversion capability and the cases and rejection partitions in its Manifest. CVP Manifest · Public replay cases

Candidate is a registry lifecycle state. It is not a completed review or CVP verification.

Definition sources

• NIST — Handbook 44 — Appendix C, General Tables of Units of Measurement

  2026 edition; Appendix C

  Appendix C: troy ounce = 480 grains

  Source checked: 2026-10-29

  Factual definition relationships are independently encoded; no source prose or media redistributed.