Grade 42 Quantitative Paper 4.25CM 1442-042

• Diameter: 4.25cm
• Retention: 2.5µm
• A world standard for critical gravimetric analysis with the finest particle retention of all Whatman™ cellulose filter papers
• A Whatman™ cellulose filter is manufactured from high quality cotton linters treated to achieve a minimum alpha cellulose content of 98%
• Typical analytical precipitates include barium sulphate - metastannic acid and finely precipitated calcium carbonate

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 finely precipitated calcium carbonate. Retention: 2.5µm. Diameter: 4.25cm.