Section Env-A 2404.03 - Calculations of Sulfur Dioxide Emission Standards for Non-Ferrous Foundries, Smelters, or Investment Casting Operations(a) For sulfur dioxides, the maximum allowable particulate matter emission rate from non-ferrous foundries, smelters, or investment casting operations shall be calculated by the applicable equation in (b) through (d), below, where: (1) "X" means the total sulfur, CAS number 7704-34-9, burned in the smelter in pounds per hour; and(2) "Y" means the emission of sulfur dioxide, CAS number 7446-09-5, in pounds per hour;(b) For copper from smelters, CAS number 7440-50-8, multiply X by 0.2, as shown in the formula below: Y = 0.2X
(c) For zinc from smelters, CAS number 7440-66-6, raise X to the 0.85 power and multiply the result by 0.564, as shown in the formula below: Y = 0.564 X0.85
(d) For lead from smelters, CAS number 7439-92-1, raise X to the 0.77 power, and multiply the result by 0.98, as shown in the formula below: Y = 0.98 X0.77
N.H. Code Admin. R. Env-A 2404.03
#10315, eff 4-23-13 (from Env-A 2405.02)