part_subject: "NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS"
subpart_code: "D"
subpart_subject: "National Emission Standard for Beryllium Rocket Motor Firing"
section_number: "61.42"
section_subject: "Emission standard."
cfr_reference: "40 CFR 61.42"
title_name: "Title 40"
title_subject: "Protection of Environment"
parts_covered: "Parts 61 to 62"
revised_date: "Revised as of July 1, 2019"
publication_date: "As of July 1, 2019"
contains_description: "Containing a codification of documents of general applicability and future effect"
publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"
---
(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/m3)(4.68 × 10−9 pound minutes per cubic foot (lb-min/ft3)) of air within the limits of 10 to 60 minutes, accumulated during any 2 consecutive weeks, in any area in which an adverse effect 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).