Calibration Management for Photopolymer Production and Testing: Traceability, Intervals, Guard Bands and Out-of-Tolerance Impact

Photopolymer manufacturing relies on measurements whose errors can directly change process decisions: irradiance, wavelength, temperature, mass, viscosity, dimensions, force, time and analytical concentration. Calibration management therefore concerns the validity of measurement results, not the presence of a sticker on an instrument. This review develops a measurement-management architecture aligned with ISO 10012:2026: metrological requirements are derived from the decision, equipment is confirmed against those requirements, intervals are adjusted using stability evidence, and out-of-tolerance findings trigger product-impact assessment. Traceability is the documented unbroken chain to suitable references with stated uncertainty; it does not mean that every instrument is accurate enough for every use. Guard bands are used where measurement uncertainty is material to conformity decisions. The central conclusion is that calibration is complete only when the measurement capability, interval, environmental state and effect of a failed calibration can be reconstructed for the products and decisions that depended on it.

ER-297 · Version 0.3.