Johnson Test Papers' Grade 353 filters support inorganic analysis and other forms of instrumental analysis. The low ash content also makes Grade 353 appropriate for gravimetric analysis requiring sample combustion. These standard Ashless grades are very pure filters suitable for routine quantitative gravimetric techniques and in the preparation of samples for use in analysis involving instrumental techniques.
- Whatman Equivalent: No. 43
- Speed: Medium Fast Filtration
- Pore Size: 5-8um
- Weight: 84 gm/sq.m
- Filtration Speed: 50 sec
- Burst Strength: <0.20 Kg/sq.cm