This standard specifies the terms and definitions, product classification, requirements, test methods, inspection rules and markings, packaging, transportation and storage of door closers. This standard applies to various closing or opening devices installed on the upper part of swing doors for one-way opening.
GB/T 10125-2012 Corrosion tests in artificial atmospheres.Salt spray tests
GB/T 2828.1 Inspection procedure by count sampling part 1: Lot by lot inspection sampling plan retrieved by acceptance quality limit (AQL)
GB/T 2829-2002 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)
GB/T 6461-2002 Methods for corrosion testing of metallic and other inorganic coatings on metallic substrates--Rating of test specimens and manufactured articles subjected to corrosion tests
GB/T 9286 Paints and varnishes—Cross-cut test*, 2021-08-20 Update