กระดาษกรอง whatman เบอร์ 113

กระดาษกรองเบอร์ 113 ยี่ห้อ Whatman
Qualitative filter papers

Overview

Ultra high loading capacity with a particle retention well suited for use with coarse or gelatinous precipitates. Fastest flow rate of the qualitative grades. Creped surface. Thickest filter paper in the qualitative range.

These extremely strong filter papers have a high wet strength due to the addition of a small quantity of chemically stable resin. Normal qualitative applications will not introduce any significant impurities into the filtrate. The resins do, however, contain nitrogen so these grades should not be used in Kjeldahl estimations, etc. Some wet strengthened grades are available in folded (prepleated) forms.

This filter is also available in the FilterCup, a convenient, disposable 70 mm filter funnel with a 250 ml capacity, molded from polypropylene with an integral, heat bonded filter. Also available as Grade 113V.

Specifications

• 1This data shown may be based on historic Whatman records.  We are in the process of updating our supporting information as the manufacturing site for these products is changing or have changed already. We will update with new data as soon as it is available (expected to be completed by July 2016). As is normal practice, customers should determine and validate for themselves (as necessary) that the products are suitable for their specific application.
• 2Particle retention rating at 98% efficiency.
• 3For 9 cm diameter