What is Whatman filter paper No 1?
Whatman Grade 1 Qualitative Filter Papers are the most widely used filter paper for routine laboratory applications, qualitative analytical separations, and clarifying liquids. They are the standard grade cellulose filter papers for medium flow rates.
What is the diameter of Whatman filter paper?
Product Description This filter paper has a slow flow rate. This is an excellent clarifying filter for cloudy suspensions and for water and soil analysis. Retention: 2.5µm. Diameter: 4.25cm.
What is particulate class1?
Here are the different classes: Particulate Class I – Particles 0.5 to 1 micron in size Class II – Particles 1 to 5 micron in size Class III – Particles 5 to 15 micron in size Class IV – Particles 15 to 30 microns in size.
What is a Class 1 filter?
The class of a particle filter indicates how efficient the filter is in filtering out particles: class 1: 80%, class 2: 94%, class 3: 99,95%.
Diameter: 9.0cm. 100/Pack. Whatman™ #: 1001-090. This Whatman™ 8.5cm Grade 1 qualitative cellulose filter paper is the most widely used filter paper for routine applications with medium retention (11µm) and flow rate.
Is Whatman Grade 1 filter paper good?
Whatman Grade No. 1 Filter Paper, Whatman is a reliable and dependable addition to the Whatman Filters family of products. Combining top-notch and uncompromising quality with an affordable price, the Whatman Grade No. 1 Filter Paper, Whatman 1001-125/ 28450-128 can fulfill your laboratory needs while still offering a great value for the money.
What is the size of a Grade 1 filter paper?
Grade 1 Qualitative Filter Papers (11 µm particle retention) are available in a variety of sizes and formats including circles, sheets and prepleated filters. They are also available in FilterCup format, a convenient, 250 ml capacity disposable 70 mm filter funnel molded from polypropylene with an integral, heat-bonded filter.
What is the most widely used filter paper?
The most widely used filter paper for routine applications with medium retention and flow rate. Extended range of sizes includes 10 to 500 mm diameter circles and 460 x 570 mm sheets.