Kala Scientific Inc

• Compact Square Size:10mm format ideal for small-scale laboratory filtrations and sample testing.
• High-Purity Cellulose: Made from refined, acid-washed cellulose for consistent filtration performance.
• Excellent Absorbency: Quickly absorbs and retains liquids, ideal for qualitative analysis.
• Multiple Grade Options: Available in various pore sizes and flow rates to suit different filtration needs.
• Low Ash Content: Typically <0.1% ash, making it suitable for analytical and gravimetric work.

cellulose Filter paper, Qualititative, Circles ,
11 micron particle retention .
Thikness 0.18mm
Wt: 87 g/m2
Ash: 0.06%
Size:  125mm dia.
pack sizes: 100 circles / pack.

• Whatman Grade 2V pre-folded filter paper exposes extra surface area, which enables a higher loading capacity and shorter filtration time.
• Medium flow and nominal particle retention rating of 8 µm
• Herzberg filtration speed of 240 s. 

Whatman Grade 589/2 filters from Cytiva are used in routine quantitative analyses, including analysis of aqueous suspension in paper, flour analysis, and sand content quantification.

• 12.7 mm Diameter – Specifically sized for use in Blaine air permeability apparatus for cement fineness testing.
• High-Quality Cellulose Material – Made from refined, high-purity cellulose for consistent filtration performance.
• Precise Pore Structure – Ensures accurate and repeatable measurement of air permeability and cement fineness.
• Laboratory Grade – Designed for standardized cement testing as per ASTM C204 and EN 196-6 methods.
• Consistent Thickness – Uniform thickness ensures reliable test conditions and reproducibility.
• Low Ash Content – Minimizes contamination during cement testing and analysis.

• Ashless: 0.007% ash maximum

• Fine (2.5 μm) nominal particle retention rating, eliminates large particles that might otherwise interfere with sensitive instrumentation

• Herzberg filtration speed of 1870 s

• Commonly used as a calcium carbonate filter

• Particularly suitable for gravimetric analysis.

• Extremely low ash content (0.007% ash maximum)

• 20 µm nominal particle retention rating

• Fast filtration speed (Herzberg 54 s)

• Commonly used for routine air pollution analysis and soil pollution analysis.