GB/T 40057-2021 (English Version) PDF

Scope: This document stipulates the requirements, test methods, inspection, result judgment and processing, packaging and marking, packing documents, transportation and storage of the emblem of the Chinese Communist Youth League (hereinafter referred to as the emblem) for hanging and wearing. This document applies to the regimental emblem that is hung or worn. Please refer to this document for the planar regiment emblem pattern made by printing and other techniques.

GB/T 40057-2021 Referenced Document

GB/T 11186.2 Methods for measuring the colour of paint films--Part 2:Colour measurement
GB/T 11186.3 Methods for measuring the colour of paint films--Part 3:Calculation of colour differences
GB/T 1449 Fibre-reinforced plastic composites-Determination of flexural properties
GB/T 1720 Circle-drawing test of coating films
GB/T 1733 Determination of resistance to water of films
GB/T 1740 Determination of resistance to heat and humidity of paint films
GB/T 1766 Paints and varnishes.Rating schemes of degradation of coats
GB/T 1771 Paints and varnishes.Determination of resistance to neutral salt spray(fog)
GB/T 3854 Test method for hardness of reinforced plastics by means of a Barcol impresser
GB/T 3979 Methods for the measurement of object color
GB/T 5698 Glossary of color terms
GB/T 6739 Paints and varnishes—Determination of film hardness by pencil test*， 2022-12-30 Update
GB/T 7921 Uniform color space and color difference formula
GB/T 9274 Paints and varnishes--Determination of resistance to liquids
GB/T 9754 Paints and varnishes.Determination of specular gloss of non-metallic paint films at 20°,60°and 85°