GB 40070-2021

Hygienic requirements of study products for myopia prevention and control in children and adolescents

STANDARD published on 20.2.2021

English, Chinese -
electronic design (pdf) (358.80 USD)

The information about the standard:

Designation standards: GB 40070-2021
Publication date standards: 20.2.2021
Country: Chinese technical standard
Category: Technical standards GB