Code of China Chinese Classification Professional Classification ICS Classification Latest Value-added Services


Title Standard No. Implemented On
Ultrasonic test instrument of concreteJT/T 659-20062006-10-1
Verification Regulation of Laboratory Standard Microphones (Free-field Reciprocity Method)JJG 482-20052006-4-9
Metrological Terms and Their Definitions for AcousticsJJF 1034-20052006-4-9
Verification Regulation of Sound CalibratorsJJG 176-20052005-10-28
Noise Level Statistical AnalyzersJJG 778-20052005-10-28
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