‌Triple Guarantee System‌: The company holds the GBW(E) national reference material qualification, along with dual accreditations of CNAS ISO 17025 and CNAS ISO 17034.

Traceable National Standard Reference Materials‌: The GBW(E) national certified reference materials we provide have their values directly traceable to national metrological standards, and can be directly applied to instrument calibration, method validation and quality control.

Dual CNAS Accredited Closed-Loop System‌: The two authoritative CNAS qualifications form a complete closed loop of "testing & analysis — reference material production — value assignment", which professionally covers the full-chain services including commercial-scale production of reference materials/reference samples, full-lifecycle quality control and accurate, authoritative value assignment.

CNAS 17034

CNAS 17025

GBW(E) national certified