Conditions and requirements for ventilation in rooms inustriale environmental toxic, explosive or toxic substances releasing

Chapter I

Condition of air quality in ventilated
A condition important air quality in a ventilated room is flammable and explosive substances concentration. The concentration of flammable substances in the air and premises comply explozibive prescriptions regard for safety.

Requirements for construction ventilated buildings

For access to the rooms very substances releasing toxic, flammable or explosive buffer consisting rooms will be built, according to fire hazard.
Interior surfaces of building elements rooms releasing toxic substances or high-risk (mercury, lead, arsenic, acids) and explosives, will meet the following conditions:
Construction elements will be all smooth to prevent accumulation of toxic substances will be resistant to chemicals which could increase the roughness, will be made of materials that will not absorb toxic substances and allow easy cleaning by washing or other procedures.

Requirements technological processes and installations ventilated buildings
Departure production processes accompanied with great danger will be the maximum extent possible, separate isolated rooms, automated and remote control.
Se va urmari ,in masura maxima posibila,protejarea locurilor de munca fara degajari nocive prin :

Isolation releasing harmful processes in separate rooms if divided halls.
Grouping machines releasing harmful necompartimentate halls so that they form distinct areas clean and contaminated areas and separated by corridors.
Will avoid, staying in halls of parts or materials processed, which emit harmful substances.
Requirements for electrical installations in buildings ventilated
Ventilation of rooms A and B class fire danger will be provided in all cases, the signaling systems for accidental shutdown fans.
Ventilation to rooms of category A, B or C fire danger will be provided with means for stopping in places accessible to fans in case of fire.
Starting and stopping electric motors acting ventilation equipment is electrical interlock systems to ensure commissioning of facilities for entering the air intake before, in the case of rooms with danger of fire, explosion or unexpected releases harmful substances (toxic, suffocating, dead) as well as in the case of rooms with negative pressure regime.