# ISO 6550-1:1994 — Withdrawn and superseded ISO standards

For ISO 6550-1:1994, item title is Road vehicles — Sheath-type glow-plugs with conical seating and their cylinder head housing — Part 1: M14 x 1,25 glow-plugs; status code is 9599; successor is ISO 17447-1:2015 | ISO 17447-2:2015 | ISO 17447-3:2015; withdrawn / published date is 1994-12-22, recorded from its source on 2026-08-05.

- **Identifier:** ISO 6550-1:1994 _(verified: appears in the quote below)_
- **Item title:** Road vehicles — Sheath-type glow-plugs with conical seating and their cylinder head housing — Part 1: M14 x 1,25 glow-plugs _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 17447-1:2015 | ISO 17447-2:2015 | ISO 17447-3:2015
- **Withdrawn / published date:** 1994-12-22 _(verified: appears in the quote below)_

## What the source says

> 20089,IS,,ISO 6550-1:1994,"Road vehicles — Sheath-type glow-plugs with conical seating and their cylinder head housing — Part 1: M14 x 1,25 glow-plugs","Véhicules routiers — Bougies de préchauffage à fourreau et à siège conique, et leur logement dans la culasse — Partie 1: Bougies M14 x 1,25",1994-12-22,1,['43.060.50'],ISO/TC 22/SC 32,9599,[12946],"[59789,59790,63265]","['en','fr']",3,"<p>Specifies the main characteristics of M14 × 1,25 sheath-type glow-plugs with conical seating and their cylinder head housing, for use with diesel (compression-ignition) engines. Type M14 should not be used for new applications.</p>"

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).