TS ISO 6726

TS ISO 6726 is a vocabulary standard that gathers the mass-related terms used for two-wheeled mopeds and motorcycles. For the vehicle classes defined in ISO 3833, it clarifies how the relevant mass concepts are named; its role is terminology harmonisation rather than setting calculation rules or technical performance limits.

Technical context of mass terminology

In road vehicle engineering, mass concepts are used to distinguish between different technical states of a vehicle, such as unladen condition, condition with specified equipment, and situations influenced by rider or load. For mopeds and motorcycles, these distinctions matter for type description, comparability, cataloguing, and technical communication. In general technical use, consistent terminology helps prevent the same vehicle from being interpreted differently across documents.

What the standard covers and what it excludes

• Covered: terms related to the masses of two-wheeled mopeds and motorcycles defined in ISO 3833.
• Excluded: vehicles used by pedestrians.
• Excluded: road vehicles used for freight transport.
• Excluded: measurement methods.
• Excluded: units used in reporting results.
• Excluded: the magnitude of defined masses and the verification required.

For that reason, the document should be read as a technical language standard rather than a test standard. It tells users which mass concepts are being referred to, but it does not define how those masses are measured, which numerical values are acceptable, or what verification procedure must be applied.