There are several matches for quartz filters, including filters for air sampling and filters for modifying PDF on Mac:
Quartz Air Sampling Filters: These filters are made of pure quartz fibers without binders or glass fibers and can be used in a variety of applications, including:
Air Sampling: In acid gases, aerosols, flues, and stacks
High Temperature Air Monitoring: In applications requiring low metal content, high filter purity, and no carbon traces
PM 10 Particle Sampling: For sampling and analysis of PM 10 particles and other pollutants
Quartz filters have several properties that make them suitable for these applications, including:
Chemical Resistance
They are highly resistant to chemical corrosion and do not react with acid gases
Low Metal Content
They have extremely low trace metal content and do not absorb NOx and SOx dioxides
Temperature Resistance
Some quartz filters can withstand temperatures up to 1000°C (1832°F)
Bio-Inertness
They are biologically inert and can be easily sterilized by autoclaving or baking
Some examples of quartz filters include:
Heat-treated quartz filters
These filters are made of binder-free quartz microfibers and are designed for use in high temperatures and corrosive environments.
Whatman Grade QM-A Quartz Microfiber Filters
These 50 mm diameter filters are heat resistant up to 800°C and are suitable for particle monitoring and heavy metal analysis.
Quartz filters may also refer to filters used in the Preview app on Mac to modify PDFs by adding effects, changing colors, or reducing file size.
