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Qualitative Filter Paper
Introduction
MicrolabSci ™Qualitative Filter paper is applicable to pharmaceutical, chemical plants producing all kinds of pharmaceutical and solvent filtration. the qualitative filter paper is chiefly used for qualitative chemical analysis and relevant filter separation, as well as manufacturing test paper of relevant purity. The good characterization of folded filter paper compared to the same type of filter paper formation has the advantage of speeding up the flow rate and increasing the load power.
 
Microlabsci ™Qualitative Filter paper can be divided into fast, middle and slow speed three categories when measured by filtering speed and separation performance. Also it has to types: flat sheet and round. Qualitative filter paper to a square is 600*600mm. Qualitative Filter Paper circle diameter ranges from 7cm-18cm.


Feature
  • Made of 100%alpha cotton cellulose;Ash content 0.1%
  • Stable from PH 0~12;thermostable up to 120℃
  • Not melting in acid,Alkali and other organic solvents impure substances
  • Qualitative analytical techniques to determine and identify materials.
 
Application
  • Widely used in general laboratory filtration
  • Liquid clarifications, analytical separations
  • air and water analysis
  • Rough sample preparation. 

Specification
Weight Flow Rate Retention(μm) Diameter Whatman Brand
80g/㎡(±4) Fast Speed 20~25 7, 9, 11, 12.5, 15, 18, 16*16cm Grade:4, 114, 113
Middle Speed 8~16 7, 9, 11, 12.5, 15, 18, 16*16cm Grade:1, 2, 3, 598, 591, 91, 93
Slow Speed 2~4 7, 9, 11, 12.5, 15, 18, 16*16cm Grade:5, 6

Order Information
Item# Description Online Price
QL0700F Qualitative  Filter paper, Diameter 70mm, Pore Size: 20~25μm, Fast Speed, 100pcs/pk $2.89
QL0900F Qualitative  Filter paper, Diameter 90mm, Pore Size: 20~25μm, Fast Speed, 100pcs/pk $3.97
QL1100F Qualitative  Filter paper, Diameter 110mm, Pore Size: 20~25μm, Fast Speed, 100pcs/pk $5.53
QL1250F Qualitative Filter paper, Diameter 125mm, Pore Size: 20~25μm, Fast Speed, 100pcs/pk $6.67
QL1500F Qualitative  Filter paper, Diameter 150mm, Pore Size: 20~25μm, Fast Speed, 100pcs/pk $8.57
QL1800F Qualitative Filter paper, Diameter 180mm, Pore Size: 20~25μm, Fast Speed, 100pcs/pk $11.65
QL6600F Qualitative Filter paper, Diameter 600*600mm, Pore Size: 20~25μm, Fast Speed, 100pcs/pk $59.16
QL0700M Qualitative Filter paper, Diameter 70mm, Pore Size: 8~16μm, Middle Speed,100pcs/pk $2.89
QL0900M Qualitative Filter paper, Diameter 90mm, Pore Size: 8~16μm, Middle Speed,100pcs/pk $3.97
QL1100M Qualitative Filter paper, Diameter 110mm, Pore Size: 8~16μm, Middle Speed,100pcs/pk $5.53
QL1250M Qualitative Filter paper, Diameter 125mm, Pore Size: 8~16μm, Middle Speed,100pcs/pk $6.67
QL1500M Qualitative Filter paper, Diameter 150mm, Pore Size: 8~16μm, Middle Speed,100pcs/pk $8.57
QL1800M Qualitative Filter paper, Diameter 180mm, Pore Size: 8~16μm, Middle Speed,100pcs/pk $11.65
QL6600M Qualitative Filter paper, Diameter 600*600mm, Pore Size: 8~16μm, Middle Speed,100pcs/pk $59.16
QL0700S Qualitative Filter paper, Diameter 70mm, Pore Size: 2~4μm, Slow Speed,100pcs/pk $2.89
QL0900 Qualitative Filter paper, Diameter 90mm, Pore Size: 2~4μm, Slow Speed,100pcs/pk $3.97
QL1100S Qualitative Filter paper, Diameter 110mm, Pore Size: 2~4μm, Slow Speed,100pcs/pk $5.53
QL1250S Qualitative Filter paper, Diameter 125mm, Pore Size: 2~4μm, Slow Speed,100pcs/pk $6.67
QL1500S Qualitative Filter paper, Diameter 150mm, Pore Size: 2~4μm, Slow Speed,100pcs/pk $8.57
QL1800S Qualitative Filter paper, Diameter 180mm, Pore Size: 2~4μm, Slow Speed,100pcs/pk $11.65
QL6600S Qualitative Filter paper, Diameter 600*600mm, Pore Size: 2~4μm, Slow Speed,100pcs/pk $59.16

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