《小学生一日学习时间卫生标准》等五个学校卫生标准经国家技术监督局(现更名为国家质量技术监督局)和卫生部联合发布为推荐性国家标准,自1998年10月1日起实施。为使广大读者及时有所了解,现简介如下:1 小学生一日学习时间卫生标准(GB/T17223—1998)1.1 小学一、二年级学生的一日学习时间不宜超过4小时,三、四年级不宜超过5小时,五、六年级不宜超过6小时。1.2 小学生每节课时间为40(或45)分钟。 Health Standards for Primary School Students in One Day Learning Time and other five school health standards jointly issued by the State Bureau of Technical Supervision (now renamed the State Bureau of Quality and Technical Supervision) and the Ministry of Health as recommended national standards have been implemented since October 1, 1998 . In order to make the readers know in time, the brief introduction is as follows: 1 Primary school day study time hygiene standards 1.1 Primary school first and second grade students should not study more than 4 hours in one day, not suitable for grade 3 and 4 More than 5 hours, fifth and sixth grade should not be more than 6 hours. 1.2 pupils each class time is 40 (or 45) minutes.