Filter Paper – Qualitative Grades

whatmanlogoQualitative Grades – Circles

WET STRENGTH

L – Suitable for gravity or low suction filtration. Care must be taken to prevent rupture of paper

M – Will withstand all normal use on Buchner Funnels or others devices under suction or moderate pressure

H – High wet strength and high chemical resistance

Grade No

 

Flow rate

Retention microns

Wet Strength

Thickness, mm

Student*

General purpose schools grade, smooth

Medium/Fast

11-25

H

0.15

*These school grade papers are manufactured and packed to less critical standards than other Whatman Filters. Approximate values only.

filter-paper-qualititave-grade-1

CAT NO

DIAMETER SIZE

PACK SIZE

1093-110

11cm

100

1093-111

11cm

1250

1093-125

12.5cm

100

1093-126

12.5cm

1250

1093-6212

12.5cm

4000

1093-6215

15cm

1000

Grade No

 

Flow rate

Retention microns

Wet Strength

Thickness, mm

91*

General purpose schools grade, smooth

Medium/Fast

10

H

0.23

*These school grade papers are manufactured and packed to less critical standards than other Whatman Filters. Approximate values only.

filter-paper-qualititave-grade-91

CAT NO

DIAMETER SIZE

PACK SIZE

1091-110

11cm

4000

1091-125

12.5cm

4000

1091-150

15cm

1000

1091-165

16.5cm

1000

1091-185

18.5cm

1000

1091-190

19cm

1000

1091-240

24cm

1000

1091-500

50cm

100

Grade No

 

Flow rate

Retention microns

Wet Strength

Thickness, mm

Ash %

1

The most widely used general purpose paper

Medium/Fast

11

L

0.18

0.06

filter-paper-qualititave-grade-1

CAT NO

DIAMETER SIZE

PACK SIZE

1001-020

2cm

400

1001-025

2.5cm

400

1001-030

3cm

400

1001-042

4.25cm

100

1001-055

5.5cm

100

1001-070

7cm

100

1001-085

8.5cm

100

1001-090

9cm

100

1001-110

11cm

100

1001-125

12.5cm

100

1001-150

15cm

100

1001-185

18.5cm

100

1001-240

24cm

100

1001-270

27cm

100

1001-320

32cm

100

1001-400

40cm

100

1001-500

50cm

100

Grade No

 

Flow rate

Retention microns

Wet Strength

Thickness, mm

Ash %

2

Slightly thicker and more retentive than No1

Medium/Fast

8

L

0.19

0.06

 

filter-paper-qualititave-grade-2

CAT NO

DIAMETER SIZE

PACK SIZE

1002-042

4.25cm

100

1002-047

4.7cm

100

1002-055

5.5cm

100

1002-070

7cm

100

1002-090

9cm

100

1002-110

11cm

100

1002-125

12.5cm

100

1002-150

15cm

100

1002-185

18.5cm

100

1002-240

24cm

100

1002-270

27cm

100

1002-320

32cm

100

1002-85

38.5cm

100

1002-500

50cm

100

Grade No

 

Flow rate

Retention microns

Wet Strength

Thickness, mm

Ash %

2V

As No.2 but supplied pre-pleated

Medium/Fast

8

L

0.19

0.06

filter-paper-qualititave-grade-2v

CAT NO

DIAMETER SIZE

PACK SIZE

1202-125

12.5cm

100

1202-150

15cm

100

1202-185

18.5cm

100

1202-240

24cm

100

1202-270

27cm

100

1202-320

32cm

100

1202-385

38.5cm

100

1202-400

40cm

100

1202-500

50cm

100

Grade No

 

Flow rate

Retention microns

Wet Strength

Thickness, mm

Ash %

3

Double the thickness of No.1

Medium

6

M

0.39

0.06

filter-paper-qualititave-grade-3

CAT NO

DIAMETER SIZE

PACK SIZE

1003-042

4.25cm

100

1003-055

5.5cm

100

1003-070

7cm

100

1003-090

9cm

100

1003-110

11cm

100

1003-125

12.5cm

100

1003-150

15cm

100

1003-185

18.5cm

100

1003-240

24cm

100

1003-270

27cm

100

1003-320

32cm

100

Grade No

 

Flow rate

Retention microns

Wet Strength

Thickness, mm

Ash %

3MM

Filtration grade for chromatography paper 3MM chr

Medium

11

M

0.34

filter-paper-qualititave-grade-3mm

CAT NO

DIAMETER SIZE

PACK SIZE

1030-023

2.3cm

100

1030-024

2.4cm

100

1030-025

2.5cm

100

1030-047

4.7cm

100

Grade No

 

Flow rate

Retention microns

Wet Strength

Thickness, mm

Ash %

4

Excellent retention of coarse and gelatinous precipitates

Fast

20-25

L

0.21

0.06

filter-paper-qualititave-grade-4

CAT NO

DIAMETER SIZE

PACK SIZE

1004-027

2.7cm

400

1004-042

4.25cm

100

1004-047

4.7cm

100

1004-050

5cm

100

1004-055

5.5cm

100

1004-070

7cm

100

1004-090

9cm

100

1004-110

11cm

100

1004-125

12.5cm

100

1004-150

15cm

100

1004-185

18.5cm

100

1004-240

24cm

100

1004-270

27cm

100

1004-320

32cm

100

1004-325

32.5cm

100

1004-400

40cm

100

Grade No

 

Flow rate

Retention microns

Wet Strength

Thickness, mm

Ash %

5

Will retain fine precipitates, grained surface

Slow

2.5

L

0.20

0.06

filter-paper-qualititave-grade-5

CAT NO

DIAMETER SIZE

PACK SIZE

1005-047

4.7cm

100

1005-055

5.5cm

100

1005-070

7cm

100

1005-090

9cm

100

1005-110

11cm

100

1005-125

12.5cm

100

1005-150

15cm

100

1005-185

18.5cm

100

1005-240

24cm

100

1005-320

32cm

100

1005-325

32.5cm

100

Grade No

 

Flow rate

Retention microns

Wet Strength

Thickness, mm

Ash %

6

Faster than No. 5 but almost as high retention

Slow

3

L

0.18

0.20

filter-paper-qualititave-grade-6

CAT NO

DIAMETER SIZE

PACK SIZE

1006-042

4.2cm

100

1006-070

7cm

100

1006-090

9cm

100

1006-110

11cm

100

1006-125

12.5cm

100

1006-150

15cm

100

1006-185

18.5cm

100

1006-240

24cm

100

Grade No

 

Flow rate

Retention microns

Wet Strength

Thickness, mm

Ash %

113

Excellent retention of coarse and gelatinous precipitates, creped

Fast

30

H

0.42

0.06

filter-paper-qualititave-grade-113

CAT NO

DIAMETER SIZE

PACK SIZE

1113-090

9cm

100

1113-110

11cm

100

1113-125

12.5cm

100

1113-150

15cm

100

1113-185

18.5cm

100

1113-240

24cm

100

1113-320

32cm

100

1113-500

50cm

100

Grade No

 

Flow rate

Retention microns

Wet Strength

Thickness, mm

Ash %

113V

As No. 113 but supplied pre-pleated

Fast

30

H

0.42

0.06

filter-paper-qualititave-grade-113v

CAT NO

DIAMETER SIZE

PACK SIZE

1213-125

12.5cm

100

1213-150

15cm

100

1213-185

18.5cm

100

1213-240

24cm

100

1213-270

27cm

100

1213-320

32cm

100

1213-500

50cm

100

Grade No

 

Flow rate

Retention microns

Wet Strength

Thickness, mm

Ash %

114

Similar to No. 113 but thinner and very strong. Smooth surface

Fast

25

H

0.19

0.06

filter-paper-qualititave-grade-114

CAT NO

DIAMETER SIZE

PACK SIZE

1114-090

9cm

100

1114-125

12.5cm

100

1114-150

15cm

100

1114-185

18.5cm

100

1114-240

24cm

100

1114-270

27cm

100

1114-400

40cm

100

Grade No

 

Flow rate

Retention microns

Wet Strength

Thickness, mm

Ash %

114V

As No. 114 but supplied pre-pleated

Fast

25

H

0.19

0.06

filter-paper-qualititave-grade-114v

CAT NO

DIAMETER SIZE

PACK SIZE

1214-125

12.5cm

100

1214-150

15cm

100

1214-185

18.5cm

100

1214-240

24cm

100

1214-320

32cm

100

 

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