AQ 4202-2008
Administrative standard for personal exposure concentration of respirable coal dust in the air of workplace (English Version)
- Standard No.
- AQ 4202-2008
- Language
- Chinese, Available in English version
- Release Date
- 2008
- Published By
- Professional Standard-Safe Production
- Status
- Latest
- AQ 4202-2008
- Scope
- This standard applies to the management of coal dust containing less than 5% free silica in the air at workplaces.
AQ 4202-2008 history
- 2008 AQ 4202-2008 Administrative standard for personal exposure concentration of respirable coal dust in the air of workplace
- 1970 LD 39-1992 Management standards for exposure concentration of respirable coal dust in air in workplaces
