Whatman Filter Paper 42 Specifications

Whatman quantitative filter papers are designed for gravimetric analysis and the preparation of samples for instrumental analysis.

Whatman filter paper 42 specifications. Pore size metric 2 5μm. Ashless grades are very pure filters suitable for a wide range of critical analytical filtration procedures. 2 7 μm retention of finest crystalline precipitates. The thinnest of all whatman filter papers.

How to choose the best whatman filter paper for your application. Grade 42 is designed for gravimetric analysis and sample preparation for instrumental analysis. Typical analytical precipitates include barium sulfate metastannic acid and finely precipitated calcium carbonate. Grade 42 is designed for gravimetric analysis and sample preparation for instrumental analysis.

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. 2 5 μm slow filter paper a world standard for critical gravimetric analysis with the finest particle retention of all whatman cellulose filter papers. 0 007 ash maximum fine 2 5 μm nominal particle retention rating eliminates large particles that might otherwise interfere with sensitive. Ge s whatman grade 42 quantitative papers have the finest retention of all whatman ashless filter paper grades.

Grade 42 circles are suitable for processes that require ashing. The fastest ashless filter paper recommended for analytical procedures involving coarse particles or gelatinous precipitates e g iron or aluminum hydroxides. Typical analytical precipitates include barium sulfate metastannic acid and finely precipitated calcium carbonate. 2 5 μm slow filter paper a world standard for critical gravimetric analysis with the finest particle retention of all whatman cellulose filter papers.

Typical analytical precipitates include barium sulfate metastannic acid and. Whatman quantitative filter paper. This finish also keeps the paper free from loose surface fibres. The tough surface makes these filters suitable for a wide range of critical filtration procedures.

1442 110 number of items. Hardened and highly glazed surface. Grade 42 filter papers have the finest retention of all whatman ashless filter paper grades. 1 part number.

There are many grades of paper each with its own unique properties and applications. These are very pure filters suitable for a wide range of critical analytical. 0 007 ash maximum for grades 40 to 44. Grade 42 ashless filter paper for instrumental analysis 47 mm circle 100 pcs item description.