Meaning
Calibration of laboratory instrumentation is necessary to ensure the traceability and accuracy of microstructural measurements. To achieve this, standard reference materials are used as benchmarks with certified physical or chemical properties. They provide a reliable baseline for verifying the performance of microscopes and hardness testers.
Quality Assurance
These certified substances are produced under strict conditions and are accompanied by a certificate stating the certified values with their uncertainties. Using standard reference materials ensures that the measurements made in a specific lab are accurate and traceable to national standards. This traceability is required for maintaining laboratory accreditation and customer trust.
Calibration Practice
Technicians measure these materials before starting a series of tests to verify that the equipment is functioning correctly. If the measured values fall outside the certified limits, the instrument must be recalibrated or serviced. This practice prevents the generation of incorrect data and reduces the risk of accepting defective steel batches.
Purchasing Decision
Procurement departments prioritize suppliers that use certified materials to calibrate their testing equipment. Requiring the use of standard reference materials in supply contracts protects the buyer from receiving materials with inaccurate quality ratings. Investing in these certified calibration standards is a cost-effective way to prevent disputes between steel buyers and producers.
It ensures that both parties are using the same physical references, which minimizes the risk of expensive measurement differences during incoming quality audits.
