ISO 5099:2022

Light gauge metal containers - Easy-open ends and peel-off ends - Classification and dimensions

This document specifies classification and the key dimensions of easy-open ends and peel-off ends. This document is applicable to the manufacture and sale of easy-open ends and peel-off ends for food and beverages made of metal plates such as tin, chromium coated steel plates or aluminium alloy plates with a thickness of no more than 0,49 mm.

Récipients métalliques légers — Ouvertures faciles et extrémités détachables — Classification et dimensions

General Information

• Status: Published
• Publication Date: 28-Jul-2022
• ICS: 55.120 - Cans. Tins. Tubes
• Technical Committee: ISO/TC 52 - Light gauge metal containers
• Drafting Committee: ISO/TC 52/WG 3 - Easy-open ends and peel-off ends
• Current Stage: 6060 - International Standard published
• Start Date: 29-Jul-2022
• Due Date: 08-Jun-2023
• Completion Date: 29-Jul-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.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 5099
First edition
2022-07
Light gauge metal containers —
Easy-open ends and peel-off ends —
Classification and dimensions
Récipients métalliques légers — Ouvertures faciles et extrémités
détachables — Classification et dimensions
Reference number
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ISO copyright office
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Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification . 1
4.1 Easy-open ends . 1
4.2 Peel-off ends . . . 2
5 Designation . 3
6 Dimensions .3
6.1 Key dimensions . 3
6.2 Dimensions of easy-open ends . 4
6.2.1 Round easy-open ends . 4
6.2.2 Non-round easy-open ends . 5
6.3 Dimensions of peel-off ends . 6
6.3.1 Round peel-off ends . 6
6.3.2 Rectangular and square peel-off ends . 6
iii
Foreword
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electrotechnical standardization.
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described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
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iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 52, Light gauge metal containers.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
Introduction
Metal cans are important packaging for the food industry, as they provide a long shelf life for food and
beverage products. They are used for canning vegetables and meat, as well as beer and carbonated
drinks. The pull tab for beverage cans was invented in 1959 and easy-open ends with the pull tab have
been included with various types of metal cans since the 1960s. The easy-open end solves the problem
of how to open the can and is convenient and instant, which is what customers demand. It also allows
more products (e.g. soup, juice, coffee) to be stored in metal packaging. There are many advantages to
using metal cans such as strength, good sealing capacity and easy storage, and they are a convenient
way to transport seasonal food and beverages around the world.
A large number of easy-open ends and peel-off ends are produced every year, and they have become an
important part of the can manufacture industry. Along with thinner and lighter demands for metal food
packaging, softer aluminium peel-off ends have been developed for use in some food cans and powder
cans. They have improved the convenience and safety of opening the metal cans.
v
INTERNATIONAL STANDARD ISO 5099:2022(E)
Light gauge metal containers — Easy-open ends and peel-
off ends — Classification and dimensions
1 Scope
This document specifies classification and the key dimensions of easy-open ends and peel-off en
...