CNAS17025 Certification Qualification Services - Focused on Guidance and Deep Expertise for 18 Years

Routine verification methods commonly used in laboratories

During the period, the common 7 methods for verification

① Verify against the reference standards

② Participate in proficiency testing or laboratory comparisons

③ Certified Standard Material

④ Comparison of the Same Instrument

⑤ Comparison of Test Results for the Same Sample Using Different Instruments

⑥ Re-inspection of retained samples

7. Protocol Standards and Methods Comparison

9 selectable items/parameters for periodic verification of instruments and equipment

　　Zero-point inspection

　　② Sensitivity

　　③ Accuracy

　　④ Resolution

　　⑤ Measurement Repeatability

　　⑥ Standard Curve Linear

　　⑦ Instrument built-in self-check

　　⑧ Standard Material or Reference Material Testing Comparison

　　Technical specifications listed in the instrument's manual