47mm diameter. 0.45um pore size. Clearly defined grid lines spaced at 3.1mm intervals. Flexible. Tolerate handling without sacrificing integrity. Supplied sterile in individual packs with absorbent pad in polyester envelope. Low level of extractables.
Includes 9.5mm barbed hose connections. Contains dyes which change color when resin is exhausted. 5psig minimum inlet pressure. 65psig maximum inlet pressure. Resin types: high capacity, two-bed. Capacity: 1270 grains as NaCl. 8.6cm diameter. 47.5cm length.
Black Gridded, Sterile. Whatman black and green mixed ester membranes are composed of cellulose acetate (-20%) and cellulose nitrate (-80%). These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters.
White Sterile. Gridded, Without absorbent pad. Recommended for the majority of routine applications, this grade is manufactured under strictly controlled cleanroom conditions.