GE Whatman Quantitative Papers: Ashless Grade 42 is a very pure filter suitable for a wide range of critical analytical filtration procedures, including gravimetric analysis. It has the finest particle retention of all GE Whatman cellulose filter papers. Typical analytical precipitates include barium sulfate, metastannic acid, and finely precipitated calcium carbonate.
Finest particle retention of all GE Whatman cellulose filter papers
Low ash – 0.0007%
Ideal for gravimetric analysis and other applications where maximum retention is required
Specifications for Whatman Quantitative Papers: Ashless Grade 42