T/WFSB 05-2021 Active Group standards

T/WFSB 05-2021 The Four Treasures of the Study: Student Calligraphy Brushes

T/WFSB 05-2021

Publish Date: 2022-06-01 Implement Date: 2022-06-01 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/WFSB 05-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Art and crafts

Publish Date: 2022-06-01

Implement Date: 2022-06-01

Scope

Main technical content: The main technical content includes the classification, performance requirements, and safety requirements of students' calligraphy pens. Among them, the classification can be divided into straight-tube pens and dip pens according to the structure of the pen shaft, and into medium-style pens and large-style pens according to the specifications; the performance requirements of students' calligraphy pens include five items: appearance, dimensions and allowable deviations, nib performance, nib ink absorption performance, and firmness; the safety requirements include three items: migratable elements, phthalic esters in plastic parts, and free formaldehyde.