Ashless quantitative filter papers

These filter papers are used for gravimetric analysis or environmental monitoring. Made of high quality alpha cotton cellulose.

• Acid washed and rinsed with ultrapure water to neutralize

Grade No.3: Medium retention, fast flow rate paper with good chemical resistance and wet strength. Recommended for analysis of soils, fertilisers, cement, and minerals.

Grade No.5A: Retain coarse and gelatinous ppt with high flow rates. Filter hydroxides, metalic aerosols, environmetnal monitoring, and determine silica content in steel.
Grade No.5B: Retain medium size ppt such as CaCo3, PbSO4, AgCl. General purpose paper.
Grade No.5C: High retention efficiency collecting fine ppt with slow flow rate. Gravimetric analysis and collecting particles that tend toward colloidal dispersion.

Grade No.6: Retains medium-fine particulates. Uses are precision analysis of trace and precious metals, beverages, water.
Grade No.7: Highest purity paper for medium particles. Fast flow rate. Recommended for precise gravimetric analysis of minute trace and precious metals.

Grade No.4A: Hardened, smooth low ash paper with superior wet strength. Retains fine crystalline ppt with slow flow rate. Suitable for Buchner filtrations, high pressure, high chemical and pH resistance.

Grade No.4A: Hardened, smooth low ash paper with superior wet strength. Retains fine crystalline ppt with slow flow rate. Suitable for Buchner filtrations, high pressure, high chemical and pH resistance.