This standard specifies the terms and definitions, classification and labeling, requirements, test methods, inspection rules and markings, packaging, transportation and storage of national air-sounding instruments. This standard applies to national air-sounding instruments with blown holes and double reeds or free reeds as vibrating bodies.
QB/T 1947.1-2012 Referenced Document
GB/T 2828.1-2003 Sampling procedures for inspection by attributes--Part 1: Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection
GB/T 2829-2002 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)