Which factories or warehouses require forced ventilation, and what are the relevant standards?
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Which workshops or warehouses in petrochemical enterprises require forced ventilation, and what are the relevant standards?
It is mainly aimed at areas where people work frequently; in particular, places with toxic substances, flammable and explosive materials, or dust require mandatory ventilation； For some aspects, reference can be made to the Specifications for Hygienic Engineering Controls to Prevent Occupational Poisoning in the Workplace (GBZT194-2007)
SH/T 3004-2011
Take a look at the \"Code for Design of Chemical Industry Heating, Ventilation and Air Conditioning\", HG20698-2009 – it contains detailed regulations