GB 28231-2011 (English Version) PDF

Standard No.: GB 28231-2011
Language: Chinese, Available in English version
Release Date: 2011
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB 28231-2011

Scope: This standard specifies the safety and hygiene requirements for teaching writing boards (chalk boards and white boards), the appearance quality, structure, classification, installation, marking, instructions and test methods of writing boards, etc. This standard applies to writing boards used in ordinary classrooms, laboratories and other special classrooms in schools of all levels and types. The writing boards used in other teaching activities and communication, notes, publicity, etc. can be used as a reference. This standard does not apply to notices and electronic memory transmission display writing board. This standard does not involve the electrical control part of the tablet, and the relevant content can refer to the corresponding electrical safety requirements.

GB 28231-2011 Referenced Document

GB 5296.1 Instructions for use of products of consumer interest.Part 1:General principles*， 2012-12-31 Update
GB/T 15608 The Chinese color system
GB/T 16422.2-1999 Plastics--Methods of exposure to laboratory light sources Part 2: Xenon--arc sources
GB/T 1710-2008 Comparision of resistance to light of coloured pigments of similar types
GB/T 17657-1999 Test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels
GB/T 250 Textiles.Tests for colour fastness.Grey scale for assessing change in colour
GB/T 3979-2008 Methods for the measurement of object color
GB/T 5698 Glossary of color terms
GB/T 6749-1997 Method of specifying colour for paint films
GB/T 730 Textiles.Tests for colour fastness.Quanlity control of blue wool reference materials 1to 7
GB/T 9761-2008 Paints and varnishes. Visual comparison of the colour of paints
QB/T 2859 Whiteboard pen*， 2018-07-04 Update