EN ISO 12822:2020 PDF

Overview - EN ISO 12822:2020 (26 H 126 crown finish)

EN ISO 12822:2020 specifies the dimensions of the 26 H 126 shallow crown finish for glass bottles used for beverages. The finish is designed to accept a 26 mm metal crown cap (shallow crown). This international CEN/ISO standard (second edition, 2020) supersedes EN 14635:2010 and defines the finish geometry, tolerances and important sealing details that ensure reliable capping, sealing and compatibility with capping equipment.

Key topics and technical requirements

• Finish type and purpose: 26 mm shallow crown finish (26 H 126) for beverage glass bottles designed for metal crown caps.
• Dimensional drawings: Design and critical dimensions are defined in Figures 1–5 (profile, shoulder, bore, sealing surface, and crimping edge).
• Critical dimensions (examples from document):
  • Nominal crown diameter: 26 mm cap interface.
  • Diameter measured 3 mm down from top: between 18.5 mm (max) and 17 mm (min).
  • Minimum through-bore: 15.5 mm.
  • Recommended crimping edge radius: between 0.5 mm and 0.8 mm, ideally near 0.5 mm.
• Sealing surface: Must be smooth, free of defects, and avoid contact between the crown cap liner compound and the internal mould parting line of the glass finish.
• Tolerances: General tolerances are aligned with ISO 9058 (Glass containers - Standard tolerances for bottles).
• Variations for one-way bottles: For non-returnable bottles the diameter at a specific location may be ≤ 18.5 mm subject to written agreement among bottler, glass manufacturer and crown cap maker.
• Equipment considerations: Construction limits and capping equipment may impose additional dimensional constraints on neck contour.

Practical applications and users

• Who uses this standard:
  • Glass container manufacturers (neck and finish design)
  • Bottlers and beverage producers (specifying bottle/cap compatibility)
  • Crown cap manufacturers (cap design and liner interface)
  • Capping equipment and filler OEMs (machine tooling and crimp settings)
  • Quality assurance and compliance teams (incoming inspection, testing)
• Why it matters:
  • Ensures interchangeability and reliable sealing between bottles and crown caps
  • Reduces leakage, spoilage and production downtime from misfit caps
  • Facilitates supply-chain compatibility across manufacturers and countries

Related standards

• ISO 9058 - Glass containers: standard tolerances for bottles (normative reference).
• EN 17177 - Glass packaging - Crown cap - 26 mm diameter, 6 mm height (related cap specification).
• Supersedes EN 14635:2010.

Keywords: EN ISO 12822:2020, 26 H 126 crown finish, glass packaging, crown cap dimensions, shallow crown finish, glass bottles, capping equipment, sealing surface.