# GME30.12 - GL finish — Packaging specification equivalence: neck finishes, corrugated grades and pallet standards

For GME30.12 - GL finish, specification type is neck_finish, recorded from its source on 2026-09-23.

- **Specification ID:** GME30.12 - GL finish _(our reading, not quoted from the source)_
- **Specification type:** neck_finish _(our reading, not quoted from the source)_
- **Description:** This document specifies the dimensions of GL glass container knuckle thread finishes. It applies to finishes with external screw thread, which have been developed preferably for glass packaging and are used primarily for medical or cosmetic products. _(verified: appears in the quote below)_

## What the source says

> This document specifies the dimensions of GL glass container knuckle thread finishes. It applies to finishes with external screw thread, which have been developed preferably for glass packaging and are used primarily for medical or cosmetic products.

## Where each value comes from

This source states these in separate places, so each value is shown with the passage that states it.

### Specification ID

> GME30.12 - GL finish

## Source

- https://www.cetie.org/en/finish-data-sheets-gme_102.html

Last verified: 2026-09-23. Review by: 2028-09-22.
Part of [Packaging specification equivalence: neck finishes, corrugated grades and pallet standards](https://referencesource.org/packaging-material-specification-equivalence/).