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
- Particle Size Distribution of Aerosol (DOS/DEHS) Generated from a Laskin-Nozzle Generator
- Required Upstream Aerosol Concentration
- Upstream Challenge Aerosol Introduction Point
- Compressed Air Volume Required for a Type III‐A Laskin Nozzle Aerosol Generator
- Particle Size Distribution of Aerosol (PAO-4) Generated from a Laskin-Nozzle Generator
- Particle Size Distribution of Aerosol (DOP/DEHP) Generated from a Laskin-Nozzle Generator
- Particle Size Distribution of Aerosol (PAO-4) Generated from a Thermal Condensation Generator (TDA-5A, TDA-5B)
- Particle Size Distribution of Aerosol (DOP/DEHP) Generated from a Thermal Condensation Generator (5D)
- Particle Size Distribution of Aerosol (PAO-4) Generated from a Thermal Condensation Generator (5C)
- Testing Biological Safety Cabinets (BSCs) using TDA-5A, TDA-5B, or 5C Thermal Condensation Generator
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
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