Plain limit gauges for linear size brought up to date
EN ISO 1938-1:2026 aligns requirements for plain limit gauges with the current system of geometrical product specification (GPS) standards.
- A plain limit gauge is the simplest tool for checking a dimension: it either passes or does not, with no numerical reading.
- Despite its simplicity the gauge itself is subject to calibration, and its wear translates directly into accepting non-conforming parts.
- The new edition places these tools within the current GPS system, where tolerances and verification rules are described coherently for the whole geometry of a product.
- For calibration laboratories and quality control departments this means updating the requirements for gauges accepted for calibration.