T/LZZLXH 057-2021 Active Group standards

T/LZZLXH 057-2021 Primary and secondary school laboratory equipment technical specifications

Publish Date: 2021-01-25 Implement Date: 2021-02-26 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/LZZLXH 057-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Education, degrees, and academic titles

ICS Name: Integrated services

Publish Date: 2021-01-25

Implement Date: 2021-02-26

Scope

Main technical content: The raw materials of the equipment (including composite materials processed by new technologies) shall comply with the provisions of Article 5.2 of GB 21746-2008, and shall meet the following requirements: a) Plastic materials: They shall have sufficient strength, be non-toxic, harmless, non-deformable, high-temperature resistant, low-temperature resistant, aging-resistant, and anti-static. b) Metal materials: They shall have sufficient rigidity, be rust-free, and not deform due to normal use. c) Glass materials: They shall comply with the provisions of Article 8.1 of GB 15763.2 and JY/T0001-2003. d) Natural wood: The wood shall be free from insect infestation, and shall undergo pest treatment and drying. Under conditions of relative humidity of 70%, it shall not undergo deformation that could affect the performance of the equipment. Its moisture content shall be 8% plus 1% of the annual average moisture content of wood in the local area. e) Artificial boards shall meet the following requirements: 1) Medium-density fiberboards shall comply with the provisions of GB/T 11718. 2) Particleboards shall comply with the provisions of GB/T 4897. 3) Impregnated film-faced artificial boards shall comply with the provisions of GB/T 15102. 4) Unsaturated polyester resin decorated artificial boards shall comply with the provisions of LY/T 1070. 5) Fire-resistant boards shall meet the provisions of GB 8624-2006 for Class B. 6) The moisture content of artificial boards shall comply with the provisions of Table 3 of GB/T 3324-2008. f) Environmentally friendly resin materials: Acid- and alkali-resistant, formaldehyde-free, highly flame-retardant, and high hardness. g) The radioactivity of natural stone shall comply with the provisions of Class A in GB 6566. h) Hardware shall comply with the provisions of QB/T 1241 and QB/T 1242. i) Transmission wires, sockets, and switches shall meet the following requirements: 1) Transmission