This standard specifies the requirements, test methods, inspection rules and packaging, transportation and storage of watch dials. This standard applies to dials made of various metal materials, and dials made of other materials can also be used with reference.
GB/T 2828.1 Inspection procedure by count sampling part 1: Lot by lot inspection sampling plan retrieved by acceptance quality limit (AQL)*, 2013-02-15 Update
GB/T 2829 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)
QB/T 2422 BOPP pressure sensitive adhesive tape for sealing