Whatman Filter Paper 42 Pore Size

42 2 5µm fine.

Whatman filter paper 42 pore size.

Our membrane filter offering includes pore sizes from 0 015 to 12 µm. Grade 42 is designed for gravimetric analysis and sample preparation for instrumental analysis. It has a slow flow rate and is very hard and strong with excellent chemical resistance. Membrane filters are recommended for retention of very small particles or for microbiological purposes.

12 25 μm a fast filter paper with high wet strength. Whatman grade 542 filter paper is often used in gravimetric metal determinations. Select the optimal whatman filter for your application whatever you need to filter whatman has it covered. It is helpful for determining what filter paper is needed.

Sterile filtration use sterile filter and membrane with pore size 0 2 μm. Grade 540 8 µm. 2 5µm p whatman 1442 125 ashless grade 42 quantitative filter paper diameter. Grade 42 2 5 µm grade 44 3 µm medium precipitate.

Thickest filter paper in the whatman range. 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 is the filter paper size chart used to be on whatman s boxes. Whatman filter papers and membranes are world renowned as a standard for laboratory filtration and are associated with quality reliability and reproducibility.

It has a very smooth surface making it easy to scrape or. Ultra fine filter with retention. The tough surface makes these filters suitable for a wide range of critical filtration procedures. Different types of qualitative whatman filter paper their properties the most common qualitative paper grades are 1 6 595 597 598 and 602 which have applications across multiple industries.

2 5 μm slow filter paper a world standard for critical gravimetric analysis with the finest particle retention of all whatman cellulose filter papers. Grade 42 filter papers have the finest retention of all whatman ashless filter paper grades. Smooth surface for easy recovery of precipitates. Below are summaries of the grade properties and common uses.

Typical analytical precipitates include barium sulfate metastannic acid and finely precipitated calcium carbonate.