WASHINGTON, Aug. 28 -- Environmental Protection Agency has issued a notice called: Ortho-Phthalaldehyde; Receipt of Application for Emergency Exemption, Solicitation of Public Comment.
The notice was published in the Federal Register on Aug. 28 by Charles Smith, Director, Registration Division, Office of Pesticide Programs.
Summary: EPA is announcing a specific exemption request from the National Aeronautics and Space Administration (NASA) to use the pesticide ortho-phthalaldehyde (OPA, CAS No. 643-79-8) to treat the coolant fluid of the internal active thermal control system (IATCS) of the International Space Station (ISS) to control aerobic/microaerophilic bacteria in the aqueous coolant. The applicant proposes the use of a new chemical...