Filter papers

Suitable for ordinary qualitative-technical filtration purposes.
  • made of very pure cellulose with a high alpha cellulose content
  • low ash content (average content is approx. 0.1 %)
  • wet-strength
  • for medium crystalline precipitations
Circular filters:
Cat. No. Diameter Grade Unit
6759609 70 mm 292 100
6759612 90 mm 292 100
6759614 110 mm 292 100
6759615 125 mm 292 100
6759616 150 mm 292 100
6758809 70 mm 3 hw 100
6758812 90 mm 3 hw 100
6758814 110 mm 3 hw 100
6758815 125 mm 3 hw 100
6758816 150 mm 3 hw 100
6758909 70 mm 6 100
6758912 90 mm 6 100
6758914 110 mm 6 100
6758915 125 mm 6 100
6758916 150 mm 6 100
Folded filters:
Cat No. Diameter Grade Unit
6717003 125 mm 292 100
6717004 150 mm 292 100
6717005 185 mm 292 100
6717007 240 mm 292 100
6717009 320 mm 292 100
6716603 125 mm 3 hw 100
6716604 150 mm 3 hw 100
6716605 185 mm 3 hw 100
6716607 240 mm 3 hw 100
6716609 320 mm 3 hw 100
6716703 125 mm 6 100
6716704 150 mm 6 100
6716705 185 mm 6 100
6716707 240 mm 6 100
6716709 320 mm 6 100

Information about filter grades

Grade 292 3 hw 6
Similar to Whatman 1 student grade 114
Surface plain plain plain
Filtration properties medium tight medium crystalline medium crystalline
Filtration velocity 50 s/10 ml 20 s/10 ml 15 s/10 ml
Filtration time
(Herzberg)
500 s/100 ml
120 ml/min.
140 s/100 ml
430 ml/min.
70 s/100 ml
850 ml/min.
Basis weight 87 g/m2 65 g/m2 80 g/m2
Typical pore size 5-8 μm 8 - 12 μm 10 - 13 μm

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