FS09.00
Revision I
Published on: 01/06/2024

Relationship between mass and capacity for glass containers (Alpha factor)

Scope of application

This data sheet proposes a relationship between mass and capacity for normal glass bottles. This relationship, named alpha, can be considered as the lightening factor of a container, independently of its volume. For instance, a 1,5 l bottle with an alpha of 14 has the same lightening factor as a 66cl bottle with the same alpha of 14. In the first stage of development of a new container, it helps designers find reference weights for comparison, by giving them equivalent containers, to propose an initial weight for the new container.
History
First edition: 01/2003
Revision I: 06/2024 - Modification of the title and the content. Decision to limit the scope of the document to the definition of alpha, and deletion of the reference table which potentially could be confusing.

Contributors

ARDAGH, BA GLASS, BRITISH GLASS, BUNDESVERBAND GLASINDUSTRIE E.V. (Federal Association of the German Glass Industry), ENCIRC GLASS, GERRESHEIMER, HEINZ GLAS, O-I MANUFACTURING, SAVERGLASS, STOELZLE, VERALLIA, VETROPACK, VIDRALA, WIEGAND-GLASHUTTENWERKE

Document under responsibility of working group:

Glass wg1+4
WG chair: Arnaud JANIN - VERALLIA FRANCE

This permanent group is dedicated to a wide range of topics downstream of the production of glass bottles and jars dedicated to the food and beverage industries:

  • Surface treatments, marking, labelling;
  • Testing methods (impact, headspace, internal pressure, etc.);
  • Nomenclatures (of finishes, jars, bottles, and visual defects, etc.);
  • Quality management (food and beverage safety, best practices, regulations).
Published document
Cover - FS09.00 - Relationship between mass and capacity for glass containers (Alpha factor)

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