GB/T 46535-2025 Guidelines for quality grading of consumer products—Writing instruments

GB/T 451.2-2002 Paper and board—Determination of grammage GB/T 451.2-2023 Paper and board—Part 2:Determination of grammage GB/T 451.3-2002 Paper and board—Determination of thickness GB/T 456-2002 Paper and board—Determination of smoothness (Bekk method) GB/T 742-2003 Paper,board and pulp—Determination of residue(ash) on ignition at 900℃ GB/T 742-2008 Fibrous raw material,pulp,paper and board—Determination of ash GB/T 742-2018 Fibrous raw material,pulp,paper and board—Determination of residue(ash)on ignition at 575 ℃ and 900 ℃ GB/T 1540-2002 Paper and board-Determination of water absorption-Cobb method GB/T 22363-2008 Paper and board—Determination of roughness(air leak methods)—Bendtsen method and print-surf method GB/T 26704-2022 Pencils GB/T 26711-2011 Microporous nib pens GB/T 26711-2024 Microporous nib pens GB/T 26714-2011 Ball point pens and refills GB/T 26714-2019 Ball point pens and refills GB/T 26717-2024 Fountain pens and nibs GB/T 32017-2015 Roller ball pens and refills GB/T 32017-2019 Roller ball pens and refills GB/T 37853-2019 Gel ink ball pens and refills GB/T 43550.1-2023 Mechanical pencils and leads for general use—Classification,dimensions,quality and test methods—Part 1:Mechanical pencils GB/T 43550.2-2023 Mechanical pencils and leads for general use—Classification,dimensions,quality and test methods—Part 2:Black leads GB/T 45363-2025 Writing instruments—Terminology QB/T 1023-2018 Activity pencil QB/T 1024-2018 Activity pencil with black lead core QB/T 2777-2015 pen marker QB/T 2777-2006 pen marker QB/T 2778-2015 QB/T 2778-2015 Fluorescent pen QB/T 2778-2006 QB/T 2778-2006 Fluorescent pen QB/T 2859-2018 whiteboard marker QB/T 4153-2010 Writing board QB/T 4859-2015 pencil-like brush。 QB/T 4860-2015 Paint pen QB/T 5255-2018 The specification for testing the compatibility of ballpoint pen nibs with ink QB/T 5969-2023 watercolor pen