ISO 5099:2022

Overview

ISO 5099:2022 specifies the classification and key dimensions for easy-open ends and peel-off ends used on light gauge metal containers. It applies to ends manufactured and sold for food and beverage packaging made from thin metal sheets (electrolytic tinplate, chromium‑coated steel or aluminium alloys) with a thickness of no more than 0.49 mm. The standard defines types, designation codes and the dimensional parameters manufacturers and buyers need to ensure compatibility and interchangeability.

Key topics and technical requirements

• Scope and terms: Definitions for easy-open end (sheet metal with score line and riveted tab) and peel‑off end (metal ring with heat‑sealed film).
• Classification:
  • Easy-open ends: Round (R), Rectangular/Square (Re), Oval (Ov), Trapezoidal (Tr) and Obround (O). Subtypes include food, beverage (two- and three-piece) and solid food ends.
  • Peel-off ends: Round (Rp) and Rectangular/Square (Rep).
• Designation system: Code letters (R, Re, Ov, Tr, O, Rp, Rep) plus end-size identifiers for clear ordering and specification.
• Key dimensions (illustrated in the standard):
  • d (can/nominal diameter), D (curl diameter), h (curl height), c (countersink depth), b (curl opening).
  • The document provides recommended dimensions and tolerances for common end sizes (e.g., R200, R202, Rp300, Re304) and separate tables for food cans, beverage cans (two- and three-piece) and solid food cans.
• No normative references are listed; the standard is self-contained for classification and dimensional requirements.

Applications and who uses it

ISO 5099:2022 is essential for:

• Can and end manufacturers specifying tooling and production tolerances.
• Packaging engineers and product designers ensuring end-to-container compatibility.
• Suppliers, buyers and procurement teams specifying end types for supply contracts.
• Quality control, inspection and metrology teams validating dimensional conformity.
• Food and beverage brands and co-packers requiring standardized easy‑open or peel‑off ends for retail products.

Practical benefits include improved interchangeability, consistent sealing and opening performance, and streamlined procurement and tooling choices.

Related standards

• Prepared by ISO/TC 52 (Light gauge metal containers).
• For further implementation or cross‑referencing, consult your national standards body or ISO resources (ISO Online Browsing Platform).

Keywords: ISO 5099:2022, easy-open ends, peel-off ends, light gauge metal containers, can dimensions, can end classification, food packaging, beverage cans, aluminium ends.