This standard specifies the series and basic parameters, requirements, test methods, inspection rules, signs, packaging, transportation and storage of bubble level, automatic leveling level and electronic level. This standard applies to bubble level, automatic leveling level and electronic level (hereinafter referred to as instrument).
GB/T 15464 Gmeneral-purpose specification for the packaging instrumentation products
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)