Company News
New national reference-material certificates for multiple tumour markers
AFP, CEA and CA series assigned national values to support IVD performance evaluation and EQA.
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NSE quality control achieves seven-day open-vial stability
Patented stabilisation technology extends open-vial stability beyond the typical two-day benchmark.
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Recognised as a Beijing Specialized and Innovative Enterprise
Recognition of our research and product capabilities supports continued investment in independent quality-control development.
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A new batch of infectious-disease serum panels is now available
Broader concentration ranges support reagent performance evaluation and registration testing.
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Custom development services launched
Custom serum-panel preparation and quality controls for reagent manufacturers and laboratories.
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ISO 13485 medical-device quality-system review completed
The quality-management system continues to support product consistency.
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New endocrine hormone reference-material series
Expanded thyroid and sex-hormone analytes strengthen the reference-material portfolio.
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Serum-panel capacity expansion enters production
Improved capacity and lot consistency support supply at scale.
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Independent brand website beijingcs.com launched
The new website improves product presentation, technical support and traceability search.
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The role of independent reference materials in centralised procurement
Independent, traceable quality controls are becoming a common language for performance comparison.
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Joint EQA programme with a provincial clinical laboratory centre
External quality assessment for infectious-disease immunoassays across regional laboratories.
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Workshop on serum-panel performance-verification methodology
Experts discuss performance-verification practice under ISO 15189.
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Traceability requirements for reference materials in IVD registration
A review of metrological traceability and uncertainty requirements in registration submissions.
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Trends in serum-panel use for reagent performance evaluation
The value of serum panels in sensitivity, specificity and agreement evaluation.
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Impact of HBV mutants on surface-antigen testing
Using mutant serum panels to assess missed-detection risk and reagent coverage.
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Training notes on measurement-uncertainty evaluation
Value assignment and evaluation principles based on JJF 1059 and ISO Guide 35.
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EQA result analysis and improvement
Result interpretation and quality-improvement recommendations for regional laboratories.
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Progress in reference-material commutability research
Methods for assessing reference-material commutability across testing systems.
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