Current industry filter leak scan testing standards and recommended practices require a minimum of 10 micrograms per liter (ug/l) as an upstream aerosol challenge concentration when using photometry as the primary detection method. While higher concentrations may be used, 10-ug/l is the minimum required concentration that must be used to maintain compliance. ATI aerosol photometers are designed to operate in accordance with all current industry standards and recommended practices.
Articles in this section
- Required Upstream Aerosol Concentration
- Upstream Challenge Aerosol Introduction Point
- Compressed Air Volume Required for a Type III‐A Laskin Nozzle Aerosol Generator
- Testing Biological Safety Cabinets (BSCs) using TDA-5A, TDA-5B, or 5C Thermal Condensation Generator
- Laskin Nozzle Aerosol Generator Recalibration
- “Portable” Compressor Requirements for Laskin Nozzle Generators
- Portable Laskin Generator Compressor Requirements
- Laskin-Nozzle Aerosol Concentration
- TDA-5B, 5C, or 5D Pulsing or Wet Aerosol Output
- Thermal Generator Inert Gas Propellant (Models TDA-5A, 5B, and 5C)
Comments
1 comment
Hello,
The minimum required concentration that must be used to maintain compliance according current ISO 14644-3 is not more 10 ug/l, but 1 ug/l. Photometer TDA 2i is not able to establish its upstream concentration for such a low concentration.
Is there something planned or considered to technically adapt this possibility ?
Thanks & Regards
Jean-François Desablens
Please sign in to leave a comment.