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GPS Insights, Standards & Practical Guidance

Current developments in ISO GPS standards (ISO 8015 & ASME Y14.5), practical tolerancing rules, and insights for engineering managers, designers, and metrologists.

EXCLUSIVE STANDARDS UPDATE VIDEO

ISO 14405-1:2025 – Key Updates in ISO-GPS Dimensional Tolerancing

One of the most essential standards in ISO GPS has been reissued! Watch the video by Marcus Grella to discover the key updates in the 08/2025 edition and what they mean for your technical drawings.

Full Video Transcript & Key Takeaways
One of the most important standard documents in ISO GPS has been updated. Learn what has changed and where to get a free summary in this video.

ISO 14405 Part 1 replaces the previous edition as of August 2025.

Key changes & highlights:

  • Number of feature groups – now aligned with ISO 5458
  • Multi-line specifications (e.g. required when applying multiple modifiers to a dimensional tolerance)
  • CT and restricted area specifications positioned prior to the size specification
  • Filter specifications – eliminating discrepancies between surface roughness and dimensional tolerance
  • SCS modifier now mandatory

Every new practical example on gps-practice.com already incorporates these updated syntax rules.

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All Insights & Articles

The New ISO 14405-1:2025 is Here! An Update from ISO-GPS World!
News 12. August 2025

The New ISO 14405-1:2025 is Here! An Update from ISO-GPS World!

Everything about the new ISO 14405-1:2025 standard for linear sizes. Discover the key updates for engineering drawing creation & quality auditing by Marcus Grella.

ISO 14405-1:2025 & ISO-GPS Examples: Unambiguous Component Tolerancing per ISO 8015
News 22. July 2025

ISO 14405-1:2025 & ISO-GPS Examples: Unambiguous Component Tolerancing per ISO 8015

Practical ISO-GPS examples & ISO 14405-1:2025 guide by Marcus Grella (Steinbeis Transfer Center). Download free PDF handbooks, HD videos, sheet metal tolerancing & B2B Inhouse Partner Hub.