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Position: Chinese Standard in English/WS/T 663-2020
WS/T 663-2020   Specification for screening of refractive error in primary and secondary school students (English Version)
Standard No.: WS/T 663-2020 Status:valid remind me the status change
Language:English File Format:PDF
Word Count: 4000 words Price(USD):120.00 remind me the price change
Implemented on:2020-6-1 Delivery: via email in 1~3 business day
Standard No.: WS/T 663-2020
English Name: Specification for screening of refractive error in primary and secondary school students
Chinese Name: 中小学生屈光不正筛查规范
Chinese Classification: C56    School sanitation
Professional Classification: WS    Professional Standard - Hygiene
Issued by: NHC
Issued on: 2020-01-11
Implemented on: 2020-6-1
Status: valid
Language: English
File Format: PDF
Word Count: 4000 words
Price(USD): 120.00
Delivery: via email in 1~3 business day
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