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Thickness: 0.38-0.5mm
Width: 80-200mm
Usage: Air Filter
Material: Wood Pulp
Type: Quantitative
Model Number: leiman003
Brand Name: Leiman
Place of Origin: China (Mainland)
Air permeability: 110-135 g/sq.m
Max Pore Size: <80
Stiffness: 3.0-4.5 mN.m
Air permeablity: 280-800 L/m2.s
Supplier: Factory Direct Sale
Pore Size max: 80-90 um
Factory Direct Sale: ISO9001:2008
Material: wood puple
Specification: according to the customer request production
Color: Blue Yellow and so on

Specifications

 

 Air filter paper - light duty or heavy duty

 

All color available.we can produce your requested Technical Data.

Specifications

Filter Paper, Chemical Analysis Filter Paper, Qualitative Filter Paper

Feature:

Filter paper Is manufactured with high grade fine cotton as raw material, through modern original paper making technology and advanced paper making equipment. It is pure cotton paper of high puritycertain strength. The products are widely used for scientific research, industry, agriculture, medicine hygiene, as well as environmental protection, etc. For use of qualitative quantitative analysis as well as chromatographic analysis and test.

Filtration SpeedFast Speed, Medium(Moderate) Speed, Slow Speed.

Diameter of Circular Filter Paper70mm, 90mm, 110mm, 125mm, 150mm, 180mm, 185mm, 220mm, 240mm, 500mm

Square Filter paper: 300*300mm, 600*600mm, 700*700mm, 800*800mm, 850*850mm, 900*900mm, 460*570mm etc.

Standard: GB/T 1914-93, ASTME832-81, throught ISO 9001:2008, ISO 14001 , SGS, CE, RoHs certification etc. 

TECHNICAL DATA OF CHEMICAL ANALYSIS FILTER PAPER

ITEMS

UNIT

Qualitative filter paper

Quantitative filter paper

Fast speed

Medium

Slow speed

Fast speed

Medium

Slow speed

No. 101

No. 102

No. 103

No. 201

No. 202

No. 203

Basis weight

GSM

80

80

80

80

80

80

Precipitate

Coarse and Gelatinous

Precipitate

Crystalline

Fine Crystalline

Coarse and Gelatinous

Precipitate

Crystalline

Fine Crystalline

Filter speed

(S)

35

70

140

35

70

140

Ash Content

%

0.15

0.15

0.15

0.01

0.01

0.01

Fe Content

%

0.003

0.003

0.003

0.003

0.003

0.003

Water Extracts

PH

6.5-7.5

6.5-7.5

6.5-7.5

5-8

5-8

5-8

Pore Size

μm

20~25

15~20

10~15

20~25

15~20

10~15

Water Soluble Chloride

%

0.02

0.02

0.02

0.02

0.02

0.02

Similar to Whatmanbrand

No. 4

No. 1

No. 5

No. 41

No. 40

No. 42

No. 44

Size

Size

60X60CM

Diameter of Circular Filter Paper:

70.90.110.125.150.180MM

We can supply other specifications according to the requirement of customers.

60X60CM

Diameter of Circular Filter Paper:

70.90.110.125.150.180MM

We can supply other specifications according to the requirement of customers.

Item

Model

Size

Basis weight

Packing

Qualitative
filter paper

fast speed
101

Square (L x W): 600 mmx 600 mm, 460mmx570mm
Round (diameter): 70mm, 90mm, 110mm, 125mm, 150mm, 185mm

80g/m2

Square: 100sheets/package
10packages/carton
Round: 100sheets/box
50boxes/carton

moderate speed
102

slow speed
103

Leiman
filter paper

fast speed
201

Round (diameter): 70mm, 90mm, 
110mm, 125mm, 150mm, 185mm

80g/m2

Round: 100sheets/box
50boxes/carton