WS 99-1998 Active Industry standards-Health

WS 99-1998 General provisions of safety and health for chalkboards

Publish Date: 1998-05-25 Implement Date: 1998-10-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: WS 99-1998

Standard Type: Industry standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: -

Publish Date: 1998-05-25

Implement Date: 1998-10-01

Pages: 7 pages

Development Information

Word Count: 11 Thousand words Pages: 7 pages

Referenced Standards

GBJ 99-1986 GB 250-1982 GB/T 1743-1979 GB/T 3505-1983 GB 7793-1987 Hygienic standard of lighting and illumination in elementary and middle school

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