Emission standard requirements for gas boilers
Emission standard requirements for gas boilers
Gas boilers will emit harmful gases. According to national standards, there are certain standard requirements for the emission of gases from gas boilers:
Emission standards for gas boilers in use
The atmospheric pollutant emission concentration limits for gas boilers that are already in use are: particulate matter not exceeding 30mg/m ³, sulfur dioxide not exceeding 100mg/m ³, nitrogen oxides not exceeding 400mg/m ³, and flue gas blackness not exceeding level 1.
New emission standards for gas boilers
Starting from July 1, 2014, the emission concentration limits for air pollutants from newly built gas boilers are: particulate matter not exceeding 20mg/m ³, sulfur dioxide not exceeding 50mg/m ³, nitrogen oxides not exceeding 200mg/m ³, and smoke blackness not exceeding level 1.