DT15.52
Revision II
Published on: 23/04/2018

Flaconnage - Testing procedure: Measurement of mouth-base parallelism

Scope of application

This data sheet gives test procedures to measure mouth-base parallelism for flaconnage articles made of moulded glass. The parallelism of the upper surface of the finish with respect to the base bearing surface should comply with the requirements of the closure system to be used on the glass container concerned. It is only applicable to containers with the upper surface of the finish designed to be parallel to the base plane of the container.

Table of contents

1. Scope
2. Definition
3. Test procedure
3.1. Equipment
3.1.1. Angle measurement by circular spirit level
3.1.2. Height difference measurement
3.2. Methods
3.2.1. Method using circular spirit level gauge
3.2.2. Method based on ISO 9009
4. Documents in reference
History
First edition: 12/2013
Revision I: 06/2015 - Supersedes DT11.02 (new numbering) 
Revision II: 04/2018

Contributors

APTAR, BORMIOLI LUIGI, GERRESHEIMER , GUERLAIN, HEINZ GLAS, L'ORÉAL , PARFUMS CHRISTIAN DIOR, POCHET DU COURVAL, SHISEIDO INTERNATIONAL, SILGAN DISPENSING SYSTEMS 
STOELZLE, VERESCENCE.

Document under responsibility of working group:

Flaconnage geometry
WG chair: Lorenzo PASQUALI - BORMIOLI LUIGI S.p.A.
This joint group aims to produce dedicated documentation on glass flacons for the cosmetics, perfume, and pharmacy sectors:
  • Cetie 'GME'* neck finishes data sheets concerning glass crimping neck finishes (FEA), screw neck finishes, neck finishes for pumps and snap-on neck finishes, etc.
  • All data sheets of the DT15 series, identifying tolerances and standard test methods applicable to molded glass flacons;
  • Data sheets concerning critical visual defects of flacons, neck finishes nomenclature, etc.
  • Guide of crimping recommendations.
*Initiated by the glass industry in the 1960s, the acronym 'GME' stands for 'Glass Manufacturing Experimental'. The idea was that Cetie, as an unofficial standards body, would only publish 'experimental' data sheets, before submitting these to the official standards bodies. At the same time, in the USA, the acronym 'GME' was also used. As the original meaning was lost over time, this nomenclature for Cetie's glass finishes documents has been, later on, applied to the PET finish data sheets.
Published document
Cover - DT15.52 - Flaconnage - Testing procedure: Measurement of mouth-base parallelism

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