Quantitative-Grade Filter Paper Circles Coarse Porosity
Flowrate: 2.6 sec./100mL.
Surface: Smooth, open texture.
Particle Retention: >10µm.
Applications: Suitable for coarse and gelatinous precipitates requiring thorough washing on paper. Medium Porosity
Flowrate: 15.7 sec./100mL.
Surface: Smooth.
Particle Retention: 2-5µm.
Applications: Widely used for general gravimetric analysis.
Retains medium-sized particles such as lead sulfate, calcium oxalate, and magnesium-ammonium. Fine Porosity
Flowrate: 76 sec./100mL.
Surface: Smooth, dense texture.
Particle Retention: >2µm.
Applications: Excellent retention; suitable for finest precipitates such as metastannic acid, barium sulfate, mercuric chromate, and strontium sulfate.