(a) Emissions to the atmosphere from rocket-motor test sites shall not cause time-weighted atmospheric concentrations of beryllium to exceed 75 microgram minutes per cubic meter (µg-min/m 3) (4.68 pound minutes per cubic foot (lb-min/ft 3 )) of air within the limits of 10 to 60 minutes, accumulated during any 2 consecutive weeks, in any area in which an effect adverse to public health could occur.
(b) If combustion products from the firing of beryllium propellant are collected in a closed tank, emissions from such tank shall not exceed 2.0 g/hr (0.0044 lb/hr) and a maximum of 10 g/day (0.022 lb/day).
[38 FR 8826, Apr. 6, 1973, as amended at 65 FR 62151, Oct. 17, 2000]
Title 40 published on 2012-07-01
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