ISO/TR 11761:1992

Overview - ISO/TR 11761:1992 (Light-gauge metal containers, round open-top cans)

ISO/TR 11761:1992 is a Technical Report that classifies round open-top, light-gauge metal containers by construction type and gives a consolidated list of nominal gross lidded capacities and nominal diameters for those can types. As an informative (Type 3) report, it complements ISO 10653 by providing a classification and reference sizing for common can constructions rather than prescriptive manufacturing rules.

Key topics and technical scope

• Scope and purpose: Lists standard nominal capacities (ml, L) and corresponding nominal diameters (mm) for round open-top cans, organized by construction type.
• Construction types covered:
  • 3-piece cans, straight walls
  • 3-piece cans with simple reduction (necked)
  • 3-piece conical cans (truncated)
  • 2-piece cans, straight walls
  • 2-piece cans with shoulder
  • 2-piece conical cans
  • 2-piece conical cans with shoulder
• Sizing tables: Detailed tables show nominal gross capacities and the recommended nominal diameters for each construction type.
• Annex A (informative): Reference list of can formats formerly standardized in ISO 3004 that no longer meet criteria for inclusion in ISO 10653.
• Notes and calculation: The report notes the method for calculating nominal diameter as under study in the original text; it therefore serves as a reference classification rather than a final dimensional method specification.
• Context and cross-references: The report refers to ISO 90-1 (definitions and dimensional methods for seamed cans), ISO 1361 (inner diameters), and ISO 10653 (cans defined by nominal capacity).

Practical applications and users

• Who uses it:
  • Packaging engineers and designers specifying round open-top cans
  • Can and lid manufacturers (tooling and line setup)
  • Quality, procurement, and standards teams verifying part compatibility
  • Product formulators and food processors selecting standardized pack sizes
  • Regulatory and conformity assessors referencing historical size classes
• How it’s used:
  • Selecting appropriate nominal capacities and diameters for production and supply-chain compatibility
  • Aligning can construction type (2-piece vs 3-piece, conical vs straight) with product, filling equipment, and closure systems
  • Referencing legacy can sizes (Annex A) when evaluating replacement or obsolescence of formats formerly in ISO 3004

Related standards

• ISO 10653 - Round seamed cans defined by nominal capacity (complementary normative reference)
• ISO 90-1 - Definitions and dimension/capacity determination for seamed cans
• ISO 1361 - Round can internal diameters
• ISO 3004 - Legacy series of can size standards (annexed as historical reference in ISO/TR 11761)

Keywords: ISO TR 11761:1992, light-gauge metal containers, round open-top cans, can sizes, nominal capacities, nominal diameters, three-piece cans, two-piece cans, packaging standards.