What are the calibration procedures for scales? What is the name of the verification regulations?

JJG539-1997 Certification of Digital Indicator Scales

JJJG555-1996 General Certification of Non-Automatic Weighing Scales

JJJG564-2002 Gravimetric Automatic Loading Scales and Weighing Instruments

JJJG584-1989 Trial Certification of Scales for Grain Selling Applications

JJG811-1993 Nuclear Belt Scale Certification Regulations

JJJG815-1993 Electronic Blood Collection Scale Certification Regulations

JJJG907-2006 Dynamic Highway Vehicle Automatic Weighing Instruments Certification Regulations

Additionally, the dosage scales, etc., the provinces have their own certification regulations. The test procedures.