Internal Quality Control in Textile Testing
topic
Internal quality control in textile laboratories uses control charts of reference material measurements, duplicate specimen analysis, blind sample retesting, and reagent blank monitoring to provide ongoing real-time evidence of measurement system stability, detecting instrument drift, reagent degradation, and operator technique changes between formal calibration intervals.
Role
Provides the continuous measurement quality assurance between external proficiency testing rounds and formal calibration intervals, enabling textile laboratories to detect and correct measurement problems before they affect significant volumes of customer test results and maintaining the integrity of ISO 17025 accreditation between assessment visits.