close

Register

You are about to set up an account. For this process, you will be asked to provide personal information about yourself and possibly your organization. We invite you to read our Privacy Policy concerning any use of this information that you provide to us.

Benefits of setting up an Account:
  • Allows personalized content such as Favorite Items to be viewed.
  • Conveniently stores information to be used at checkout, such as billing and shipping addresses (Payment information is never stored on the website).
  • Get customized pricing for your organization (when available).

Join Our Mailing List!

Preferred Email Format

* Required

 
Advanced Search

Whatman Quantitative Cellulose Filter Paper

By Whatman/GE Healthcare
Whatman Quantitative Cellulose Filter Paper

Whatman Quantitative Filters are designed for gravimetric analysis and the preparation of samples for instrumental analysis. They are available in three formats designed to meet your specific needs:

  • Ashless: 0.007% ash maximum, for routine quantitative techniques (Grades 40, 41, 42, 43, 44)
  • Hardened low ash: 0.015% ash maximum, very high wet strength; particularly suitable for Buchner filtration (Grades 50, 52, 54)
  • Hardened ashless: 0.006% ash maximum, very high wet strength (Grades 540, 541, 542)

Grade 541

20-25 µm. A hardened ashless filter that offers high filtration speed for the retention of large particles and gelatinous precipitates in acid or alkaline solutions. Typical applications include protein determinations, cement analysis and the determination of fiber in animal food.

             
Cat.No. Name Diam Size PK    
15-1541-042 Grade 541 Quant Hardened Ashless Filt Circs 42.5mm   $29.26
100/PK
Add To Favorites
15-1541-047 Grade 541 Quant Hardened Ashless Filt Circs 47   $30.97
100/PK
Add To Favorites
15-1541-055 Grade 541 Quant Hardened Ashless Filt Circs 55   $34.44
100/PK
Add To Favorites
15-1541-070 Grade 541 Quant Hardened Ashless Filt Circs 70   $40.73
100/PK
Add To Favorites
15-1541-090 Grade 541 Quant Hardened Ashless Filt Circs 90   $53.79
100/PK
Add To Favorites
15-1541-110 Grade 541 Quant Hardened Ashless Filt Circs 110   $61.80
100/PK
Add To Favorites
15-1541-125 Grade 541 Quant Hardened Ashless Filt Circs 125   $73.27
100/PK
Add To Favorites
15-1541-150 Grade 541 Quant Hardened Ashless Filt Circs 150   $105.83
100/PK
Add To Favorites
15-1541-185 Grade 541 Quant Hardened Ashless Filt Circs 185   $156.31
100/PK
Add To Favorites
15-1541-240 Grade 541 Quant Hardened Ashless Filt Circs 240   $246.90
100/PK
Add To Favorites
15-1541-320 Grade 541 Quant Hardened Ashless Filt Circs 320   $509.70
100/PK
Add To Favorites
15-1541-917 Grade 541 Quant Hardened Ashless Filt Circs   460 x 570mm Filter Sheets $984.63
100/PK
Add To Favorites

Grade 542

2.7 µm. A hardened ashless that gives efficient retention of small particles in solutions that would weaken conventional filters. Slow flow rate. Very hard and strong with excellent chemical resistance. Often used in gravimetric metal determinations.

           
Cat.No. Name Diam PK    
15-1542-055 Grade 542 Quant Hardened Ashless Filt Circs 55mm $34.14
100/PK
Add To Favorites
15-1542-070 Grade 542 Quant Hardened Ashless Filt Circs 70 $40.73
100/PK
Add To Favorites
15-1542-090 Grade 542 Quant Hardened Ashless Filt Circs 90 $53.79
100/PK
Add To Favorites
15-1542-110 Grade 542 Quant Hardened Ashless Filt Circs 110 $65.11
100/PK
Add To Favorites
15-1542-125 Grade 542 Quant Hardened Ashless Filt Circs 125 $74.87
100/PK
Add To Favorites
15-1542-150 Grade 542 Quant Hardened Ashless Filt Circs 150 $105.83
100/PK
Add To Favorites
15-1542-185 Grade 542 Quant Hardened Ashless Filt Circs 185 $156.31
100/PK
Add To Favorites
15-1542-240 Grade 542 Quant Hardened Ashless Filt Circs 240 $246.90
100/PK
Add To Favorites

Grade 40

8 µm. General purpose ashless filter with medium speed and particle retention. Applications include gravimetric analysis, the filtration of solutions prior to atomic absorption spectrophotometry and air pollution monitoring.

             
Cat.No. Name Diam Size PK    
15-1440-042 Grade 40 Quant Ashless Filt Circs 42.5mm   $32.57
100/PK
Add To Favorites
15-1440-047 Grade 40 Quant Ashless Filt Circs 47   $34.14
100/PK
Add To Favorites
15-1440-055 Grade 40 Quant Ashless Filt Circs 55   $35.85
100/PK
Add To Favorites
15-1440-070 Grade 40 Quant Ashless Filt Circs 70   $37.42
100/PK
Add To Favorites
15-1440-090 Grade 40 Quant Ashless Filt Circs 90   $52.03
100/PK
Add To Favorites
15-1440-110 Grade 40 Quant Ashless Filt Circs 110   $61.80
100/PK
Add To Favorites
15-1440-125 Grade 40 Quant Ashless Filt Circs 125   $69.98
100/PK
Add To Favorites
15-1440-150 Grade 40 Quant Ashless Filt Circs 150   $92.80
100/PK
Add To Favorites
15-1440-185 Grade 40 Quant Ashless Filt Circs 185   $136.67
100/PK
Add To Favorites
15-1440-240 Grade 40 Quant Ashless Filt Circs 240   $217.01
100/PK
Add To Favorites
15-1440-329 Grade 40 Quant Ashless Filt Circs 30   $26.10
100/PK
Add To Favorites
15-1440-917 Grade 40 Quant Ashless Filt Circs   460 x 570mm Filter Sheets $928.01
100/PK
Add To Favorites

Grade 41

20-25 µm. The fastest ashless filter is recommended for analytical procedures involving large particles or gelatinous precipitates such as iron or aluminum hydroxides. Also used in quantitative air pollution analysis for determining gaseous compounds at high flow rates.

             
Cat.No. Name Diam Size PK    
15-1441-042 Grade 41 Quant Ashless Filt Circs 42.5mm   $26.10
100/PK
Add To Favorites
15-1441-047 Grade 41 Quant Ashless Filt Circs 47   $29.24
100/PK
Add To Favorites
15-1441-055 Grade 41 Quant Ashless Filt Circs 55   $29.26
100/PK
Add To Favorites
15-1441-070 Grade 41 Quant Ashless Filt Circs 70   $37.41
100/PK
Add To Favorites
15-1441-090 Grade 41 Quant Ashless Filt Circs 90   $48.91
100/PK
Add To Favorites
15-1441-110 Grade 41 Quant Ashless Filt Circs 110   $58.66
100/PK
Add To Favorites
15-1441-125 Grade 41 Quant Ashless Filt Circs 125   $68.42
100/PK
Add To Favorites
15-1441-150 Grade 41 Quant Ashless Filt Circs 150   $92.78
100/PK
Add To Favorites
15-1441-185 Grade 41 Quant Ashless Filt Circs 185   $136.65
100/PK
Add To Favorites
15-1441-240 Grade 41 Quant Ashless Filt Circs 240   $217.01
100/PK
Add To Favorites
15-1441-320 Grade 41 Quant Ashless Filt Circs 320   $388.69
100/PK
Add To Favorites
15-1441-866 Grade 41 Quant Ashless Filt Circs   8 x 10" Filter Sheets $269.00
100/PK
Add To Favorites
15-1441-917 Grade 41 Quant Ashless Filt Circs   460 x 570mm Filter Sheets $928.01
100/PK
Add To Favorites

Grade 42

2.5 µm . Ashless filter with the finest particle retention of all Whatman cellulose filters. Typical analytical precipitates include barium sulfate, metastannic acid and finely precipitated calcium carbonate.

           
Cat.No. Name Diam PK    
15-1442-042 Grade 42 Quant Ashless Filt Circs 42.5mm $27.67
100/PK
Add To Favorites
15-1442-047 Grade 42 Quant Ashless Filt Circs 47 $35.85
100/PK
Add To Favorites
15-1442-055 Grade 42 Quant Ashless Filt Circs 55 $32.57
100/PK
Add To Favorites
15-1442-070 Grade 42 Quant Ashless Filt Circs 70 $39.01
100/PK
Add To Favorites
15-1442-090 Grade 42 Quant Ashless Filt Circs 90 $52.03
100/PK
Add To Favorites
15-1442-110 Grade 42 Quant Ashless Filt Circs 110 $63.56
100/PK
Add To Favorites
15-1442-125 Grade 42 Quant Ashless Filt Circs 125 $73.31
100/PK
Add To Favorites
15-1442-150 Grade 42 Quant Ashless Filt Circs 150 $92.78
100/PK
Add To Favorites
15-1442-185 Grade 42 Quant Ashless Filt Circs 185 $136.65
100/PK
Add To Favorites
15-1442-240 Grade 42 Quant Ashless Filt Circs 240 $218.57
100/PK
Add To Favorites
15-1442-320 Grade 42 Quant Ashless Filt Circs 320 $447.92
100/PK
Add To Favorites

Grade 43

16 µm. A moderately fast ashless filter used for foodstuff analysis, soil analysis, particle collection in air pollution monitoring and inorganic analysis in the construction, mining and steel industries.

           
Cat.No. Name Diam PK    
15-1443-090 Grade 43 Quant Ashless Filt Circs 90mm $52.03
100/PK
Add To Favorites
15-1443-110 Grade 43 Quant Ashless Filt Circs 110 $63.56
100/PK
Add To Favorites
15-1443-125 Grade 43 Quant Ashless Filt Circs 125 $73.31
100/PK
Add To Favorites
15-1443-150 Grade 43 Quant Ashless Filt Circs 150 $92.78
100/PK
Add To Favorites
15-1443-185 Grade 43 Quant Ashless Filt Circs 185 $136.65
100/PK
Add To Favorites

Grade 44

3.0 µm. Ashless filter that gives the lowest ash weight for any given disc size. Slightly less efficient for collecting small particles than Grade 42 but has a higher flow rate.

           
Cat.No. Name Diam PK    
15-1444-070 Grade 44 Quant Ashless Filt Circs 70mm $37.42
100/PK
Add To Favorites
15-1444-090 Grade 44 Quant Ashless Filt Circs 90 $52.03
100/PK
Add To Favorites
15-1444-110 Grade 44 Quant Ashless Filt Circs 110 $63.56
100/PK
Add To Favorites
15-1444-125 Grade 44 Quant Ashless Filt Circs 125 $73.31
100/PK
Add To Favorites
15-1444-150 Grade 44 Quant Ashless Filt Circs 150 $92.78
100/PK
Add To Favorites
15-1444-185 Grade 44 Quant Ashless Filt Circs 185 $136.65
100/PK
Add To Favorites

Grade 50

2.7 µm. The thinnest hardened low ash filter with a slow flow rate and good particle retention characteristics. The hardened surface is virtually free from loose fibers. In the electronics industry, the virtual absence of fiber shedding is utilized in carriers for integrated circuits.

           
Cat.No. Name Diam PK    
15-1450-042 Grade 50 Quant Hardened Low Ash Filt Circs 42.5mm $27.67
100/PK
Add To Favorites
15-1450-055 Grade 50 Quant Hardened Low Ash Filt Circs 55 $32.57
100/PK
Add To Favorites
15-1450-070 Grade 50 Quant Hardened Low Ash Filt Circs 70 $37.42
100/PK
Add To Favorites
15-1450-090 Grade 50 Quant Hardened Low Ash Filt Circs 90 $48.91
100/PK
Add To Favorites
15-1450-110 Grade 50 Quant Hardened Low Ash Filt Circs 110 $63.56
100/PK
Add To Favorites
15-1450-125 Grade 50 Quant Hardened Low Ash Filt Circs 125 $73.31
100/PK
Add To Favorites
15-1450-150 Grade 50 Quant Hardened Low Ash Filt Circs 150 $86.33
100/PK
Add To Favorites
15-1450-185 Grade 50 Quant Hardened Low Ash Filt Circs 185 $107.37
100/PK
Add To Favorites
15-1450-240 Grade 50 Quant Hardened Low Ash Filt Circs 240 $190.29
100/PK
Add To Favorites
15-1450-320 Grade 50 Quant Hardened Low Ash Filt Circs 320 $346.24
100/PK
Add To Favorites
15-1450-993 Grade 50 Quant Hardened Low Ash Filt Circs Smear Tab surface wipes $32.57
100/PK
Add To Favorites

Grade 52

7 µm. A general purpose hardened low ash filter with medium retention and flow rate. Ideal for use with Büchner funnels or Whatman 3-piece filter funnels.

           
Cat.No. Name Diam PK    
15-1452-090 Grade 52 Quant Hardened Low Ash Filt Circs 90 $52.03
100/PK
Add To Favorites
15-1452-110 Grade 52 Quant Hardened Low Ash Filt Circs 110 $63.55
100/PK
Add To Favorites
15-1452-125 Grade 52 Quant Hardened Low Ash Filt Circs 125 $73.27
100/PK
Add To Favorites
15-1452-150 Grade 52 Quant Hardened Low Ash Filt Circs 150 $86.33
100/PK
Add To Favorites
15-1452-240 Grade 52 Quant Hardened Low Ash Filt Circs 240 $190.29
100/PK
Add To Favorites

Grade 54

20-25 µm. Hardened low ash filter with very fast filtration for use with coarse and gelatinous precipitates. High wet strength is suitable for vacuum-assisted fast filtration of difficult materials.

             
Cat.No. Name Diam Size PK    
15-1454-055 Grade 54 Quant Hardened Low Ash Filt Circs 55mm   $32.57
100/PK
Add To Favorites
15-1454-070 Grade 54 Quant Hardened Low Ash Filt Circs 70   $37.41
100/PK
Add To Favorites
15-1454-090 Grade 54 Quant Hardened Low Ash Filt Circs 90   $52.03
100/PK
Add To Favorites
15-1454-110 Grade 54 Quant Hardened Low Ash Filt Circs 110   $63.56
100/PK
Add To Favorites
15-1454-125 Grade 54 Quant Hardened Low Ash Filt Circs 125   $73.27
100/PK
Add To Favorites
15-1454-150 Grade 54 Quant Hardened Low Ash Filt Circs 150   $86.33
100/PK
Add To Favorites
15-1454-185 Grade 54 Quant Hardened Low Ash Filt Circs 185   $107.37
100/PK
Add To Favorites
15-1454-240 Grade 54 Quant Hardened Low Ash Filt Circs 240   $190.29
100/PK
Add To Favorites
15-1454-320 Grade 54 Quant Hardened Low Ash Filt Circs 320   $346.24
100/PK
Add To Favorites
15-1454-500 Grade 54 Quant Hardened Low Ash Filt Circs 500   $743.94
100/PK
Add To Favorites
15-1454-917 Grade 54 Quant Hardened Low Ash Filt Circs   460 x 570mm Filter Sheets $928.01
100/PK
Add To Favorites

Grade 540

8 µm. A general-purpose hardened ashless filter with medium retention and flow rate. Frequently used in gravimetric analysis of metals in acid/alkali solutions.

           
Cat.No. Name Diam PK    
15-1540-042 Grade 540 Quant Hardened Ashless Filt Circs 42.5mm $29.26
100/PK
Add To Favorites
15-1540-055 Grade 540 Quant Hardened Ashless Filt Circs 55 $32.57
100/PK
Add To Favorites
15-1540-090 Grade 540 Quant Hardened Ashless Filt Circs 90 $53.79
100/PK
Add To Favorites
15-1540-110 Grade 540 Quant Hardened Ashless Filt Circs 110 $65.11
100/PK
Add To Favorites
15-1540-125 Grade 540 Quant Hardened Ashless Filt Circs 125 $74.87
100/PK
Add To Favorites
15-1540-150 Grade 540 Quant Hardened Ashless Filt Circs 150 $105.83
100/PK
Add To Favorites
15-1540-185 Grade 540 Quant Hardened Ashless Filt Circs 185 $156.31
100/PK
Add To Favorites
15-1540-240 Grade 540 Quant Hardened Ashless Filt Circs 240 $239.00
100/PK
Add To Favorites
15-1540-321 Grade 540 Quant Hardened Ashless Filt Circs 21 $29.26
100/PK
Add To Favorites
15-1540-324 Grade 540 Quant Hardened Ashless Filt Circs 24 $29.24
100/PK
Add To Favorites

The following items have been added to your cart:

Choose a favorite list for this item:

Catalog Number Description Price
$

Request Literature

Please fill out the form below if you want to request literature from Krackeler Scientific.

 

Quick Order

* Required


New Year Price Updates

We are currently working diligently to update our website pricing information for the New Year. If you place an order, you will be acknowledged with any corrected pricing. If you'd like the most current information sooner, please don't hesitate to drop us an email or give us a call and we'd be happy to assist. Thank you for your patience while we are updating.

800-334-7725
office@krackeler.com


Play Video

To Request a Quote

  1. Search or Browse for items and add to them to your Shopping Cart.
  2. Click the "Request Quote" button at the bottom of the Shopping Cart page.
  3. Fill out required fields.
  4. Optionally you can convert to standard checkout mode by choosing a payment type.
  5. Click "Request Quote" at the bottom of the page.

You will be contacted with a quote.

To Order From a Quote

  1. Register and login to the website.
  2. Receive a quote from your sales representative or customer service.
  3. Have your copy of the quote in hand.
  4. Visit our quote module to search for your quote.
Back to Top