Performance assessment of HEPA filter against radioactive aerosols from metal cutting during nuclear decommissioning

Performance of Multiple HEPA Filters Against Plutonium Aerosols

Field sampling has provided C. Elder, and Manuel Gonzales general criteria defining plutonium aerosol size characteristics and activity concentrations from typical plutonium operations. Two fabrication facilities have aerosols with activity median aerodynamic diameter’s (amad) ranging from 2 to 5 pm; the two research and development facilities indicate amad’s ranging from 1 to 4 ~; and a recove...

Methods for the Minimization of Radioactive Waste from Decontamination and Decommissioning of Nuclear Facilities METHODS FOR THE MINIMIZATION OF RADIOACTIVE WASTE FROM DECONTAMINATION AND DECOMMISSIONING OF NUCLEAR FACILITIES

Factors Influencing HEPA Filter Performance – 9060

Properly functioning HEPA air filtration systems depend on a variety of factors that start with the use of fully characterized challenge conditions for system design and then process control during operation. This paper addresses factors that should be considered during the design phase as well as operating parameters that can be monitored to ensure filter function and lifetime. HEPA filters us...

HEPA EXHAUST FILTER IV HEPA SUPPLY FILTER I / All

A microbiological survey of the effectiveness of class II (laminar flow) 'safety' cabinets found in the UK in the last six years is recorded. Only two of the nine units tested approached the containment of aerosols achieved by a good class I (exhaust protective) cabinet. The others were potentially hazardous if used with pathogenic material. The National Sanitation Foundation and the British St...

Decommissioning of Nuclear Facilities