GB/T 17223-2012

Active

Health requirements of daily learning time for secondary and elementary school students

中小学生一日学习时间卫生要求

Standard Type
GBT
ICS
13.100
CCS
C56
Status
现行
Issue Date
2012-12-31
Implementation
2013-05-01
Responsible Dept
国家疾控局
Drafting Unit
国家疾控局