Typically used for parts where functional assembly is required, but tolerances do not need to be measured in microns.
The standard has unified the global plastics industry, giving engineers a reliable system to measure and predict the manufacturing feasibility of molded parts. By designing parts to the TG5 tolerance group, manufacturers can guarantee high-quality, functional components for demanding engineering applications without ballooning tooling and production costs.
Understanding TG5 is essential for engineers, mold designers, and quality control professionals who need to ensure that plastic components fit together perfectly in complex assemblies without driving up production costs unnecessarily. What is ISO 20457? Iso 20457 Tg5
The standard organizes production variations into nine distinct tolerance groups: .
If you are building a "Smart City," you use TG5 standards (specifically ISO 14813) to ensure your investment isn't wasted on proprietary systems that can't talk to each other later. It provides a neutral, standardized blueprint for tenders. Typically used for parts where functional assembly is
: TG5 typically represents a "standard" or "simple" production level for certain materials like ABS .
You can buy the full PDF or hard copy directly from the ISO Store or national member bodies like the ANSI Webstore . If you are building a "Smart City," you
Consider two industries adopting TG5:
When reviewing a design specifying TG5, ensure the following callout is present on the technical drawing to avoid disputes: