What is ISO 12821 - Glass packaging about?
ISO 12821 is an international standard that focuses on glass packaging and dimensions. ISO 12821 specifies the dimensions of the 26 mm tall crown finish for glass bottles containing
beverages. The tall crown finish is designed to use a metal crown cap. ISO 12821 also specifies the dimensional requirements that are of direct importance to the customer/bottler and recommendations for cap application.
The gasket material and profile are not specified as several different profiles are available depending on the end-use and supplier-specific technology. The requirement placed on the gasket profile design is that it needs to be fit for the purpose used in conjunction with glass finishes in reference.
Who is ISO 12821- Glass packaging for?
ISO 12821 on glass packaging with the crown finish is useful for:
- Crown corks manufacturers, suppliers & exporters
- Quality assurance team to verify the requirements
Why should you use ISO 12821- Glass packaging?
ISO 12821 is based on (International Technical Centre for Bottling and related Packaging) datasheet GME 13.01 (2007).
Efficient packaging is of great importance for the distribution and the protection of goods. Insufficient or inappropriate packaging can lead to damage or wastage of the contents of the pack.
Glass packaging is a hygienic material that, since it is nonporous and impermeable, preserves the flavor, purity, and quality of whatever you store in it. Glass containers allow drinks and food to be heated and cooled without risk of contamination. 
ISO 12821 covers the benefits of glass packaging, and it is luxurious and visually appealing. Because glass has been such a popular packing method for so long, it exudes a vintage or retro vibe.
What’s changed since the last update?
BS EN ISO 12821:2019 supersedes BS EN ISO 12821:2015. BS EN ISO 12821:2019 includes some technical changes concerning BS EN ISO 12821:2015. These include:
- Deletion of the sentence below Figure 1: "A controlled bore of 16,6 mm to 15,6 mm between 1,5 mm and 3,0 mm from the top is recommended for bottles which are to be resealed and sterilized"
- Modification of footnotes to Figures 1, 4 and 5 and correction of Figure 5 for the reference line of the bore diameter indication
- Further details on the crimping edge ("P" point)
- Deletion of reference to some Cetie documents
- Editorial corrections
