This standard specifies the product classification and dimensional specifications, requirements, test methods, inspection rules, marking, packaging, transportation and storage of blackboards. This standard applies to blackboards made of galvanized steel sheets. This standard applies to blackboards used in teaching or experiments in ordinary schools.
T/HASH 002-2018 history
2022T/HASH 002-2022 Physics, chemistry, and biology experiment benches (tables) for teaching in primary and secondary schools