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Whatman - Blowout Sale! Save up to 54%


Blowout Sale! Up to 54% off on Whatman products at Leipr Conclave. Hurry! Limited time offers. Offers valid only while supplies last.



Whatman 1442-055 Quantitative Filter Paper Circles, 2.5 Micron, Grade 42, 55mm Diameter (Pack of 100)
Whatman 1442-055 Quantitative Filter Paper Circles, 2.5 Micron, Grade 42, 55mm Diameter (Pack of 100)
In Stock
$28.12
$22.13
You Save: 21%

mpn: 1442-055, ean: 0024142581579,

A world standard for critical gravimetric analysis with the finest particle retention of all Whatman cellulose filter papers. Typical analytical precipitates include barium sulphate, metastannic acid and finely precipitated calcium carbonate. Retenti...


Whatman 1442-070 Ashless Quantitative Filter Paper, 7.0cm Diameter, 2.5 Micron, Grade 42 (Pack of 100)
Whatman 1442-070 Ashless Quantitative Filter Paper, 7.0cm Diameter, 2.5 Micron, Grade 42 (Pack of 100)
In Stock
$48.99
$26.49
You Save: 46%

mpn: 1442-070, ean: 5057205005861,

A world standard for critical gravimetric analysis with the finest particle retention of all Whatman cellulose filter papers. Typical analytical precipitates include barium sulphate, metastannic acid and finely precipitated calcium carbonate. Retenti...


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)
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)
In Stock
$19.34
$14.75
You Save: 24%

mpn: 1004-090, ean: 0024145354606,

This Whatman 9.0cm, grade 4, cellulose filter paper is used in qualitative analytical techniques to determine and identify materials. It is extremely fast filtering. It provides excellent retention of coarse particles (20-25µm) and gelatinous precip...


Whatman 1827-021 Glass Microfiber Binder Free Filter, 1.5 Micron, 3.7 s/100mL Flow Rate, Grade 934-AH, 21mm Diameter (Pack of 100)
Whatman 1827-021 Glass Microfiber Binder Free Filter, 1.5 Micron, 3.7 s/100mL Flow Rate, Grade 934-AH, 21mm Diameter (Pack of 100)
In Stock
$23.20

mpn: 1827-021, ean: 0024140839191,

Grade 934-AH: The fine particle retention of this popular grade is superior for its high retention efficiency at high flow rates and its high loading capacity. This is a smooth surface, high-retention borosilicate glass microfiber filter which withst...


Whatman 10406870 Cellulose ME25/21 ST Mixed Ester Filter Membrane, 47mm White Circle with 3.1mm Black Grid Sterile, 0.45 Micron (Pack of 100)
Whatman 10406870 Cellulose ME25/21 ST Mixed Ester Filter Membrane, 47mm White Circle with 3.1mm Black Grid Sterile, 0.45 Micron (Pack of 100)
In Stock
$66.23
$42.00
You Save: 37%

mpn: 10406870,

The liquid is filtered through a membrane. The microorganisms collect on the membrane surface. The filter is incubated on a nutrient medium and the individual colonies can then be evaluated. The method is also suitable for large sample volumes and lo...


Whatman 10347671 Nitrogen-Free Parchment Weighing Paper Sheet, 3'' Length x 3'' Width, Grade B-2 (Pack of 500)
Whatman 10347671 Nitrogen-Free Parchment Weighing Paper Sheet, 3" Length x 3" Width, Grade B-2 (Pack of 500)
In Stock
$52.58
$43.65
You Save: 17%

mpn: 10347671,

Grade B-2 parchment weighing paper is transparent and smooth. Made from very low nitrogen parchment paper without any glue or additives. Provides excellent quantitative transfer from paper. Thickness: 0.04mm. Weight: 43 g/m². Dimensions: 3 x 3 inche...


Whatman 1001-329 Quantitative Filter Paper Circles, 11 Micron, 10.5 s/100mL/sq inch Flow Rate, Grade 1, 30mm Diameter (Pack of 100)
Whatman 1001-329 Quantitative Filter Paper Circles, 11 Micron, 10.5 s/100mL/sq inch Flow Rate, Grade 1, 30mm Diameter (Pack of 100)
In Stock
$15.44

mpn: 1001-329,

This Whatman 3.0cm, grade 1, cellulose filter paper is the most widely used filter paper for routine applications with medium retention (11µm) and flow rate. Traditionally, this grade is used in qualitative analytical separations for precipitates su...


Whatman 1444-110 Ashless Quantitative Filter Paper, 11.0cm Diameter, 3 Micron, Grade 44 (Pack of 100)
Whatman 1444-110 Ashless Quantitative Filter Paper, 11.0cm Diameter, 3 Micron, Grade 44 (Pack of 100)
In Stock
$63.00
$43.18
You Save: 31%

mpn: 1444-110, ean: 5057205005458,

Thin version of Grade 42 retaining very fine particles but with lower ash weight per sample and almost twice the flow rate as Grade 42. Retention: 3µm. Diameter: 11.0cm. 100/Pack. Whatman #: 1444-110.Diameter: 11.0cm. Retention: 3µm. Grade number 4...


Whatman 1542-110 Hardened Ashless Quantitative Filter Paper, 11.0cm Diameter, Grade 542 (Pack of 100)
Whatman 1542-110 Hardened Ashless Quantitative Filter Paper, 11.0cm Diameter, Grade 542 (Pack of 100)
In Stock
$49.00
$44.24
You Save: 10%

mpn: 1542-110,

This quantitative filter paper by Whatman provides high retention of fine particles under demanding conditions. Slow flow rate. Very hard and strong with excellent chemical resistance. Often used in gravimetric metal determinations. Retention: 2.7µm...


Whatman 1540-110 Hardened Ashless Quantitative Filter Paper, 11.0cm Diameter, 8 Micron, Grade 540 (Pack of 100)
Whatman 1540-110 Hardened Ashless Quantitative Filter Paper, 11.0cm Diameter, 8 Micron, Grade 540 (Pack of 100)
In Stock
$59.58
$44.24
You Save: 26%

mpn: 1540-110,

Very fast filtration for use with coarse and gelatinous precipitates. High wet strength makes this grade very suitable for vacuum assisted fast filtration of "difficult" coarse or gelatinous precipitates. Retention: 8µm. Diameter: 11.0cm. 100/Pack. ...


Whatman 1541-070 Hardened Ashless Quantitative Filter Paper, 7.0cm Diameter, 22 Micron, Grade 541 (Pack of 100)
Whatman 1541-070 Hardened Ashless Quantitative Filter Paper, 7.0cm Diameter, 22 Micron, Grade 541 (Pack of 100)
In Stock
$49.94
$27.68
You Save: 45%

mpn: 1541-070, ean: 5057205005601,

Very fast filtration for use with coarse and gelatinous precipitates. High wet strength makes this grade very suitable for vacuum assisted fast filtration of "difficult" coarse or gelatinous precipitates. Retention: 22µm. Diameter: 7.0cm. 100/Pack. ...


Whatman 1541-150 Quantitative Filter Paper Circles, 22 Micron, Grade 541, 150mm Diameter (Pack of 100)
Whatman 1541-150 Quantitative Filter Paper Circles, 22 Micron, Grade 541, 150mm Diameter (Pack of 100)
In Stock
$61.11
$58.05
You Save: 5%

mpn: 1541-150,

Very fast filtration for use with coarse and gelatinous precipitates. High wet strength makes this grade very suitable for vacuum assisted fast filtration of "difficult" coarse or gelatinous precipitates. Retention: 22µm. Diameter: 15.0cm. 100/Pack....


Whatman 1441-042 Ashless Quantitative Filter Paper, 4.25cm Diameter, 20 Micron, Grade 41 (Pack of 100)
Whatman 1441-042 Ashless Quantitative Filter Paper, 4.25cm Diameter, 20 Micron, Grade 41 (Pack of 100)
In Stock
$17.73

mpn: 1441-042,

The fastest ashless filter paper, recommended for analytical procedures involving coarse particles or gelatinous precipitates (e.g., iron or aluminium hydroxides). Also used in quantitative air pollution analysis as a paper tape for impregnation when...


Whatman 1006090 Qualitative Filter Paper, Grade 6, 90 mm Thick and Maximum Volume 171 ml/m (Pack of 100)
Whatman 1006090 Qualitative Filter Paper, Grade 6, 90 mm Thick and Maximum Volume 171 ml/m (Pack of 100)
In Stock
$23.06
$21.91
You Save: 5%

mpn: 0898S74PK-100,

These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat fil...


GE Whatman Reeve Angel 5230-240 Qualitative Filter Paper, Circle, Crepe Surface, Very Fast Speed, Grade 230, 24cm Diameter (Pack of 50)
GE Whatman Reeve Angel 5230-240 Qualitative Filter Paper, Circle, Crepe Surface, Very Fast Speed, Grade 230, 24cm Diameter (Pack of 50)
In Stock
$48.95
$31.49
You Save: 36%

mpn: 5230-240,

This Reeve Angel qualitative filter paper, Grade 230, is manufactured primarily for routine, noncritical laboratory filtration applications. It contains wet-strength additives and should not be used for Kjeldahl Nitrogen determinations. These Reeve A...


GE Whatman 10347509 Cellulose Qualitative Standard Filter Paper for Technical Use, Shark Skin Grade, Circle, 90mm Diameter (Pack of 100)
GE Whatman 10347509 Cellulose Qualitative Standard Filter Paper for Technical Use, Shark Skin Grade, Circle, 90mm Diameter (Pack of 100)
In Stock
$64.15
$32.58
You Save: 49%

mpn: 10347509,

These filter papers are made from super-refined cellulose and have been specifically designed to have particular properties for each technical application. The applications range from the filtration of beverages to the purification of electroplating ...


GE Whatman 1002-147 Cellulose Qualitative Filter Paper, Grade 2, Circle, 8µm Pore Size, 150mm Diameter (Pack of 100)
GE Whatman 1002-147 Cellulose Qualitative Filter Paper, Grade 2, Circle, 8µm Pore Size, 150mm Diameter (Pack of 100)
In Stock
$42.79
$28.38
You Save: 34%

mpn: 1002-147,

These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat fil...


Whatman 1827-024 Glass Microfiber Binder Free Filter, 1.5 Micron, 3.7 s/100mL Flow Rate, Grade 934-AH, 2.4cm Diameter (Pack of 100)
Whatman 1827-024 Glass Microfiber Binder Free Filter, 1.5 Micron, 3.7 s/100mL Flow Rate, Grade 934-AH, 2.4cm Diameter (Pack of 100)
In Stock
$50.29
$23.38
You Save: 54%

mpn: 1827-024, ean: 0024143259781,

The fine particle retention of this popular grade is superior for its high retention efficiency at high flow rates and its high loading capacity. This filter is a smooth surface, high retention borosilicate glass microfibre which withstands temperatu...


Whatman 10406970 White ME24 Mixed Cellulose Ester Gridded Filter Membrane, 47mm Circle with 3.1mm Black Grid, Sterile, 0.2 Micron (Pack of 100)
Whatman 10406970 White ME24 Mixed Cellulose Ester Gridded Filter Membrane, 47mm Circle with 3.1mm Black Grid, Sterile, 0.2 Micron (Pack of 100)
In Stock
$51.95
$43.00
You Save: 17%

mpn: 10406970,

Whatman mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate. These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters. Also, the color contrast provided by the filte...


Whatman 7001-0004 White Cellulose Acetate Membrane Filters Plain, 47mm Diameter, 0.2 Micron (Pack of 100)
Whatman 7001-0004 White Cellulose Acetate Membrane Filters Plain, 47mm Diameter, 0.2 Micron (Pack of 100)
In Stock
$79.49

mpn: 7001-0004, ean: 5057205005908,

These WCA cellulose acetate membrane filters by Whatman are made from pure cellulose acetate making them ideal for biological and clinical analysis, sterility tests and scintillation measurements. They consistently exhibit very low protein binding ca...



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