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Home > Whatman filter paper
Whatman filter paper

Filter paper

Enhanced whatman filter paper:

In order to satisfy some users to the special requirements of wet strength, We are ordinary developed on the basis of quantitative filter paper reinforced qualitative filter paper. This kind of product of wet burst degrees got obvious improvement. Because of its high wet strong performance and excellent intercept ability. It can be in a vacuum or positive pressure filtration performance excellence, at the same time also has good chemical resistance. The user can choose according to their own needs.

Because of the added a small amount of chemical stabilizer, this kind of filter paper not to introduce impurities in the conventional qualitative applications, but the stabilizer of nitrogen element, not recommended for kay type.

Other specifications can also be customized according to customer's requirements for processing.

Detail specifications:

Product name

separating property

Drainage time

 

Ash contert

 

Bursting

Ration

Fast

ferric hydroxide

≤35

≤0.13

≥320

65.0±3.0

Medium

 Lead sulfate

≥35-≤70

≤0.13

≥320

80.0±4.0

Product type:

Product name/Dia

Dia 7cm

Dia 9cm

Dia 11cm

Dia 12.5cm

Dia 15cm

Dia 18cm

60*60cm/pc

Fast

99-601-070

99-601-090

99-601-110

99-601-125

99-601-150

99-601-180

99-601-952

Medium

99-602-070

99-602-090

99-602-110

99-602-125

99-602-150

99-602-180

99-602-952

Whatman filter paper:

Whatman filter paper Generally USES the gravity filter, using the filter paper intercept solid phase particles and make the solid-liquid separation, usually single or more stacked using filter paper. Filter paper has natural mechanical strength and toughness, If you need to speed up the filter, Filter paper can be folded many times, Can significantly increase the filtration velocity, When the pump filter, According to the size of draught stacked 2-3 layers of filter paper in the funnel, A layer of density or the pads first, the above put filters. High corrosive sulfuric acid and nitric acid solution is unfavorable use ordinary filters, should be adopted whatman Special filter paper, Such as filter paper no. 1573. Quantitative filter paper is also used to clean bench and wipe clean laboratory devices of all kinds of tools.

Detail specifications:

Product name

Ration (g/m2)

separating property

Drainage time

 

Ash contert

Bursting

Fast

80.0±4.0

ferric hydroxide

≤35

≤0.13

≥120

Medium

Lead sulfate

≥35-≤70

≤0.13

≥140

Slow

Barium sulfate


 

≥70≤140

≤0.13

≥180

Product type:

Product name/Dia

Dia 7cm

Dia 9cm

Dia 11cm

Dia 12.5cm

Dia 15cm

Dia 18cm

Package

Fast

99-101-070

99-101-090

99-101-110

99-101-125

99-101-150

99-101-180

100pcs/box

Medium

99-102-070

99-102-090

99-102-110

99-102-125

99-102-150

99-102-180

100pcs/box

Slow

99-103-070

99-103-090

99-103-110

99-103-125

99-103-150

99-103-180

100pcs/box

Product type:

Product name/Area/pc

41x45cm

60x60cm

65x65cm

80x80cm

85x85cm

90x90cm

Fast

99-101-958

99-101-952

-

-

-

99-101-957

Medium

-

99-102-952

99-102-953

99-102-955

99-102-956

99-102-957

Slow

99-103-958

99-103-952

-

-

-

-

 

Quantitative filter paper:

Quantitative filter paper with background and pure, bright and clean, good filtering effect. Precise quantitative analysis of the experiment and major requirements for clean environment and low interference equipment, electron device and ecpreriment condition. Specially designed with three different velocity of filter paper in order to satisfy different applications: Fast, Medium and slow. Different types of filter paper of its physical and chemical indicators also vary. Used in food analysis, analysis of soil, inorganic analysis of construction, mining and steel industry. During the course of fabrication, through strict physical control and cleaning process, The vast majority of filter paper magazine has been removed, after calcination residual ash. Ensure the accurate quantitative.

Detail specifications:

Grade

Ration (g/m2)

separating property

Drainage time

 

Ash contert

 

Bursting

Fast

80.0±4.0

ferric hydroxide

≤35

≤0.01

≥120

Medium

Lead sulfate

≥35-≤70

≤0.01

≥140

Slow

Barium sulfate

≥70≤140

≤0.01

≥180

   

     Product type:

Product name/Dia

Dia 7cm

Dia 9cm

Dia 11cm

Dia 12.5cm

Dia 15cm

Dia 18cm

Package

Fast

99-201-070

99-201-090

99-201-110

99-201-125

99-201-150

99-201-180

100pcs/box

Medium

99-202-070

99-202-090

99-202-110

99-202-125

99-202-150

99-202-180

100pcs/box

Slow

99-203-070

99-203-090

99-203-110

99-203-125

99-203-150

99-203-180

100pcs/box

 

Super Quantitative filter paper:

New dual ring super quantitative filter paper listed specifically for minerals, iron and steel, nonferrous metal, cement, food, such as tea accurate quantitative analysis and design.

This filter paper not only keep the double loop filter pure background and low ash content, improve the performance of intercept fine particulate matter more, filtering load and structural strength, quantitative filter paper is double circle in the high-end products.

Detail specifications:

Grade

Ration (g/m2)

separating property

Drainage time

 

Ash contert

 

Bursting

Fast

97.0±7.0

ferric hydroxide

≤35

≤0.001

≥180

Medium

 Lead sulfate

≥40-≤70

≤0.001

≥180

Slow

Barium sulfate

≥70≤140

≤0.001

≥200

Product type:

Product name/Dia

Dia 9cm

Dia 11cm

Dia 12.5cm

Dia 15cm

Package

Fast

98-201-090

98-201-110

98-201-125

98-201-150

100pcs/box

Medium

98-202-090

98-202-110

98-202-125

98-202-150

100pcs/box

Slow

98-203-090

98-203-110

98-203-125

98-203-150

100pcs/box

The normal package of filter paper:

 

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