Best 20 Whatman Filters

 

1. Whatman

Whatman 1441-047 Quantitative Filter Paper Circles, 20 Micron, Grade 41, 47mm Diameter (Pack of 100)

Fastest ashless filter paper Retention 20µm Recommended for analytical procedures involving coarse particles or gelatinous precipitates iron or aluminium hydroxides Used in quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates Diameter 47cm

 

2. Whatman

Whatman 1822-047 Glass Microfiber Binder Free Filter, 1.2 Micron, 6.7 s/100mL Flow Rate, Grade GF/C, 4.7cm Diameter (Pack of 100)

Fast and efficient clarification Widely used for cell harvesting The standard filter in many parts of the world for the collection of suspended solids in potable water Glass microfiber filter retention 12µm diameter 47cm Grade gfc circles 47mm

 

3. Whatman

Whatman 1003-240 Quantitative Filter Paper Circles, 6 Micron, 26 s/100mL/sq inch Flow Rate, Grade 3, 240mm Diameter (Pack of 100)

Extra thickness gives increased wet strength makes this grade highly suitable for use in büchner funnels Used in qualitative analytical techniques to determine and identify materials Grade 3 Double the thickness of grade 1 even finer particle retention and excellent loading capacity 240cm

 

4. Whatman

Whatman 1442-110 Ashless Quantitative Filter Paper, 11.0cm Diameter, 2.5 Micron, Grade 42 (Pack of 100)

A world standard for critical gravimetric analysis Diameter 110cm Typical analytical precipitates include barium sulphate metastannic acid and finely precipitated calcium carbonate A whatman cellulose filter is manufactured from high quality cotton linters treated to achieve a minimum alpha cellulose content of 98 Retention 25µm

 

5. Whatman

Whatman 1851-101 Quartz Microfiber Binder Free Filter, 2.2 Micron, 6.4 s/100mL Flow Rate, Grade QM-A, 10.16cm Diameter (Pack of 100)

Qma sequentially numbered according to epa standards is suitable for most applications Diameter 1016cm Because of the low level of alkaline earth metals artifact products of sulfates and nitrates from so2 and no2 are virtually eliminated High purity quartz sio2 microfibre filter is are used for air sampling in acidic gases stacks flues and aerosols Particularly at high temperatures up to 500c and in pm10 testing

 

6. Whatman

Whatman 6714-6004 Polycap GW 75 PES Capsule Filter 60 psi Maximum Pressure, 0.45 Micron, 60L/min Flow Rate

Specifically designed to filter ground water samples before dissolved metal analysis Fittings stepped barb fitting for 14 to 38 inch tubing Filter media 045 µm poleythersulfone pes filtration area 600 sq cm 93 sq in max pressure 60psi 41 bar water flow rate 60lmin Can be used as a convenient inline filter unit connects directly to outlet of a sampling pump

Suitable for filtration procedure outlined in epa method 3005 for ground water analysis

 

7. Whatman

Whatman FM160-1 6722-5000 VACU-GUARD Vacuum Protection Filter, 50mm Disc (Pack of 10)

Hydrophobic ptfe membrane retains 9999 of airbone particles greater than 01µm Helps to confine and isolate infectious materials in vacuum systems and protect your lab Ideal for protecting vacuum pump systems 50mm disc Designed for inline use with stepped barb connections for 1012mm id hose

 

8. Whatman

Whatman Borosilicate Glass Air Sampling Filter Sheet, Grade EPM 2000, 10″ Length x 8″ Width (Pack of 100)

Dimensions 8 x 10 sheets Sheets are individually numbered to facilitate identification Selected by the epa to be the standard filter for use in the nationwide network of hivol air samplers Manufactured from 100 pure borosilicate glass of special purity enabling detailed chemical analysis of trace pollutants to take place with the minimum of interference or background Developed and produced especially for use in high volume pm10 air sampling equipment that collects atmospheric particulates and aerosols

 

9. Whatman

Whatman 6714-7502 Polycap TC 75 Polyethersulfone Membrane Capsule Filter with SB Inlet and Outlet, 60 psi Maximum Pressure, 0.2/0.2 Micron

Filtration area 75mm capsule The pes membrane is inherently hydrophilic Some applications aqueous solutions biological buffers cleaningrinsing solutions enzymes highquality water particle counting solutions reagent preparation salt solutions virus suspensions Fittings stepped barb for 6 to 10mm or 38 to 12 inch tubing

Pore size 0202µm

 

10. Whatman

Whatman 1004-070 Quantitative Filter Paper Circles, 20-25 Micron, 3.7 s/100mL/sq inch Flow Rate, Grade 4, 70mm Diameter (Pack of 100)

Used in qualitative analytical techniques to determine and identify materials Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical Extremely fast filtering provides excellent retention of coarse particles 2025µm and gelatinous precipitates such as ferric hydroxide and aluminium hydroxide Grade 4

70cm

 

11. Whatman

Whatman 6720-5001 Polydisc TF PTFE In-line Filter 0.1 Micron, 50 psi Maximum Pressure, 200 Flow Rate (Pack of 10)

Pharmaceutical biotech laboratory and electronics applications Integrity testable biosafe and lightweight Fully autoclavable for sterile applications Features a ptfe membrane which is ideal for chemically aggressive solutions Pore size 01µm

 

12. Whatman

Whatman 2200-125 1PS Phase Separator Filter Paper, 125mm Diameter (Pack of 100)

Any number of separations can be processed together Staff involvement in routine separations is at a minimum no special training required Diameter 125mm Extremely rapid separation automatically cuts off as soon as the solvent phase has passed through note water may break through upon prolonged standing Impregnated with a stabilized silicone that renders it hydrophobic retaining the aqueous phase and passing the solvent phase through

 

13. Whatman

Whatman 1442-090 Quantitative Filter Paper Circles, 2.5 Micron, Grade 42, 90mm Diameter (Pack of 100)

Retention 25µm A whatman cellulose filter is manufactured from high quality cotton linters treated to achieve a minimum alpha cellulose content of 98 Typical analytical precipitates include barium sulphate metastannic acid and finely precipitated calcium carbonate Diameter 90cm

A world standard for critical gravimetric analysis

 

14. Whatman

Whatman 1001-070 Quantitative Filter Paper Circles, 11 Micron, 10.5 s/100mL/sq inch Flow Rate, Grade 1, 70mm Diameter (Pack of 100)

Grade 1 70cm Covers a wide range of laboratory applications frequently used for clarifying liquids Widely used in education for teaching simple qualitative analytical separations Areas of use include the food industry agriculture air pollution monitoring and gas detection

 

15. Whatman

Whatman 1004-090 Quantitative Filter Paper Circles, 20-25 Micron, 3.7 s/100mL/sq inch Flow Rate, Grade 4, 90mm Diameter (Pack of 100)

90cm Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical Extremely fast filtering provides excellent retention of coarse particles 2025µm and gelatinous precipitates such as ferric hydroxide and aluminium hydroxide Used in qualitative analytical techniques to determine and identify materials

Grade 4

 

16. Whatman

Whatman 4716E15PK 1440070 Grade 40 Quantitative Filter Paper Ashless Filter Circles, 70 mm, Max Volume 310 ml/m (Pack of 100)

Used for calcium oxalate silica in steel and welldigested barium sulfate as a highpurity filter in the collection of trace elements and radionuclides in the atmosphere Used as a support for xray fluorescence and as a sample carrier for schoniger combustion Medium speed and retention 8 µm rough surface

Most widely used general purpose gravimetric filter paper acid washed ash content 0007

 

17. Whatman

Whatman 1003-070 Quantitative Filter Paper Circles, 6 Micron, 26 s/100mL/sq inch Flow Rate, Grade 3, 70mm Diameter (Pack of 100)

Extra thickness gives increased wet strength makes this grade highly suitable for use in büchner funnels Double the thickness of grade 1 even finer particle retention and excellent loading capacity Grade 3 Used in qualitative analytical techniques to determine and identify materials 70cm

 

18. Whatman

Whatman 1002-150 Quantitative Filter Paper Circles, 8 Micron, 21 s/100mL/sq inch Flow Rate, Grade 2, 150mm Diameter (Pack of 100)

General filtration in the 8µm particle size range Used in qualitative analytical techniques to determine and identify materials More absorbent than grade 1 for example it is able to hold soil nutrient in plant growth trials Grade 2 150cm

 

19. Whatman

Whatman 1005-185 Quantitative Filter Paper Circles, 2.5 Micron, 94 s/100mL/sq inch Flow Rate, Grade 5, 185mm Diameter (Pack of 100)

Slow flow rate excellent clarifying filter for cloudy suspensions and for water and soil analysis Used in qualitative analytical techniques to determine and identify materials Grade 5 Has the maximum degree of fine particle filtration 25µm in the qualitative range capable of retaining the fine precipitates encountered in chemical analysis 185cm

 

20. Whatman

Whatman 1113-150 Quantitative Filter Paper Circles, 30 Micron, 1.3 s/100mL/sq inch Flow Rate, Grade 113, 150mm Diameter (Pack of 100)

Ultra high loading capacity with a 30µm particle retention ideal for use with coarse or gelatinous precipitates 150cm Extremely strong high wet strength due to the addition of a small quantity of chemically stable resin Grade 113 Has the fastest flow rate of the qualitative grades crêped surface thickest filter paper in the qualitative range

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.