# ISO 10423:1994 — Withdrawn and superseded ISO standards For ISO 10423:1994, item title is Petroleum and natural gas industries — Drilling and production equipment — Specification for valves, wellhead and Christmas tree equipment; status code is 9599; successor is ISO 10423:2001; withdrawn / published date is 1994-07-07, recorded from its source on 2026-08-05. - **Identifier:** ISO 10423:1994 _(verified: appears in the quote below)_ - **Item title:** Petroleum and natural gas industries — Drilling and production equipment — Specification for valves, wellhead and Christmas tree equipment _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 10423:2001 - **Withdrawn / published date:** 1994-07-07 _(verified: appears in the quote below)_ ## What the source says > 18485,IS,,ISO 10423:1994,"Petroleum and natural gas industries — Drilling and production equipment — Specification for valves, wellhead and Christmas tree equipment","Industries du pétrole et du gaz naturel — Équipement de forage et de production — Spécifications pour vannes, équipement pour têtes de puits et sapin de Noël",1994-07-07,1,['75.180.10'],ISO/TC 67/SC 4,9599,,[24239],['en'],227,"
Provides for the availability of safe, dimensionally and functionally interchangeable wellhead and christmas tree equipment by laying down the requirements for performance, design, materials, testing, inspections, welding, marking, handling, storing and shipping.
" ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).