GB/T 28491-2012 Button general technical requirements and testing methods—Natural shell button

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB 250-1995 Gray scale for assessing change in colour GB/T 250-2008 Textiles—Tests for colour fastness—Grey scale for assessing change in colour GB/T 3921-2008 Textiles—Tests for colour fastness—Colour fastness to washing with soap or soap and soda GB/T 3921.1-1997 Textiles—Tests for colour fastness—Colour fastness to washing:Test 1 GB/T 3921.2-1997 Testiles—Tests for colour fastness—Colour fastness to washing:Test 2 GB/T 3921.3-1997 Textiles—Tests for color fastness—Color fastness to washing:Test 3 GB/T 3921.4-1997 Textiles—Tests for color fastness—Color fastness to washing:Test 4 GB/T 3921.5-1997 Textiles—Tests for color fastness—Color fastness to washing:Test 5 GB/T 5711-1997 Textiles—Tests for colour fastness—Colour fastness to dry cleaning GB/T 5711-2015 Textiles—Tests for colour fastness—Colour fastness to drycleaning using perchloroethylene solvent GB/T 6543-1986 Corrugated box GB/T 6543-2008 Single and double corrugated boxes for transport packages GB/T 7069-1997 Textiles—Tests for colour fastness—Colour fastness to bleaching:Hypochlorite GB/T 28490-2012 Button classification and terminology GB/T 6543-2025 Single and double corrugated boxes for transport packages GB/T 191-2025 Graphical symbols marking for handling and storage of packages