# ISO 13728:2012 — Withdrawn and superseded ISO standards For ISO 13728:2012, item title is Ships and marine technology — Ship's mooring and towing fittings — Panama chocks; status code is 9599; successor is ISO 13728:2020; withdrawn / published date is 2012-06-25, recorded from its source on 2026-08-05. - **Identifier:** ISO 13728:2012 _(verified: appears in the quote below)_ - **Item title:** Ships and marine technology — Ship's mooring and towing fittings — Panama chocks _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 13728:2020 - **Withdrawn / published date:** 2012-06-25 _(verified: appears in the quote below)_ ## What the source says > 54289,IS,,ISO 13728:2012,Ships and marine technology — Ship's mooring and towing fittings — Panama chocks,Navires et technologie maritime — Corps-morts et ferrures de remorquage de navires — Écubiers de Panama,2012-06-25,1,['47.020.50'],ISO/TC 8/SC 4,9599,,[74611],['en'],10,"

This International Standard specifies the design, size and technical requirements for Panama chocks suitable for installation on ships passing through the Panama Canal which are normally assisted by locomotives using steel towing wires. These chocks meet normal mooring requirements and Panama Canal requirements.

" ## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).