Whatman Filter Paper 42 Specifications

Whatman filter paper grade no 42 specifications for this item.

Whatman filter paper 42 specifications.

The fastest ashless filter paper recommended for analytical procedures involving coarse particles or gelatinous precipitates e g iron or aluminum hydroxides. Whatman grade 42 filter paper is used for critical gravimetric analysis with the finest particle retention of all whatman cellulose filter papers 2 5 mm at 98 efficiency. These are very pure filters suitable for a wide range of critical analytical. The thinnest of all whatman filter papers.

Pore size metric 2 5μm. 0 007 ash maximum fine 2 5 μm nominal particle retention rating eliminates large particles that might otherwise interfere with sensitive. Typical analytical precipitates include barium sulfate metastannic acid and finely precipitated calcium carbonate. 0 007 ash maximum for grades 40 to 44.

The tough surface makes these filters suitable for a wide range of critical filtration procedures. Typical analytical precipitates include barium sulfate metastannic acid and. 1442 110 number of items. Whatman quantitative filter paper.

0 30 liters item weight. Hardened and highly glazed surface. If you re unsure whether you re using the right paper for your application utilize our filter paper properties chart or check our whatman filter selector to find your filter fast. 2 5 μm slow filter paper a world standard for critical gravimetric analysis with the finest particle retention of all whatman cellulose filter papers.

This finish also keeps the paper free from loose surface fibres. Ashless grades are very pure filters suitable for a wide range of critical analytical filtration procedures. Ge s whatman grade 42 quantitative papers have the finest retention of all whatman ashless filter paper grades. Grade 42 is designed for gravimetric analysis and sample preparation for instrumental analysis.

Grade 42 ashless filter paper for instrumental analysis 47 mm circle 100 pcs item description. 1 part number. 2 7 μm retention of finest crystalline precipitates. Grade 42 circles are suitable for processes that require ashing.

Whatman quantitative filter papers are designed for gravimetric analysis and the preparation of samples for instrumental analysis. Typical analytical precipitates include barium sulfate metastannic acid and finely precipitated calcium carbonate. There are many grades of paper each with its own unique properties and applications. How to choose the best whatman filter paper for your application.