solder fume extraction regulations

According to the “Comprehensive Emission Standards for Air Pollutants” solder fume extraction regulations contain organic compounds, metal oxides, various metal elements and other pollutant concentration.

1,solder fume extraction regulations organic compounds concentration: formaldehyde maximum allowable emission concentration of ≤ 25mg/m3, 15 meters maximum allowable emission rate of 0.26kg/h; benzene maximum allowable emission concentration of ≤ 17mg/m3, 15 meters maximum allowable emission rate of 0.5kg/h; toluene high allowable emission concentration of ≤ 60mg/m3 The maximum allowable emission rate of 15m exhaust pipe secondary 3.kg/h; the maximum allowable emission concentration of xylene is ≤90mg/m3, the maximum allowable emission rate of 15m exhaust pipe secondary 1.0kg/h.

2, solder fume extraction regulations metal oxide concentration: tin and its compounds the amaximum allowable emission concentration of ≤ 8.5mg/m3, 15 meters maximum allowable emission rate secondary 0.31kg / h; lead and its compounds the maximum allowable emission concentration of ≤ 7.5mg/m3, 15 meters maximum allowable emission rate secondary 0.004kg / h; nickel and its compounds the maximum allowable emission concentration of ≤ 4.3 mg/m3, 15 meters maximum allowable emission rate secondary 0.15kg / h; nickel and its compounds The maximum allowable emission concentration of nickel and its compounds is ≤4.3 mg/m3, and the maximum allowable emission rate of 15m exhaust pipe secondary 0.15kg/h.

3,solder fume extraction regulations metal element concentration: cadmium element maximum allowable emission concentration of ≤ 0.85mg/m3, 15 meters maximum allowable emission rate secondary 0.05kg / h; chromium element maximum allowable emission concentration of ≤ 0.07mg/m3, 15 meters maximum allowable emission rate secondary 0.008kg / h.