Whatman™ Grade 1 qualitative filter papers
Grade 1 Qualitative Filter Papers are the most widely used standard grade medium flow rate cellulose filter papers
Whatman™ Grade 1 qualitative filter papers
Grade 1 Qualitative Filter Papers are the most widely used standard grade medium flow rate cellulose filter papers
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Grade 1 qualitative filter papers
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Overview
Whatman Grade 1 Qualitative Filter Papers are the most widely used filter paper for routine laboratory applications, qualitative analytical separations, and clarifying liquids. They are the standard grade cellulose filter papers for medium flow rates.
- Qualitative analytical separations for precipitates such as lead sulfate, calcium oxalate (hot), and calcium carbonate
- Agricultural soil analysis and seed testing procedures
- Industrial food processing techniques to extract liquid or separate solid foodstuffs from associated liquid
- Air pollution monitoring by collecting atmospheric dust from airflow and photometrically measuring the stain-intensity
- Gas detection by quantitative chromogenesis with optical reflectance
Medium flow rate and retention for a wide range of qualitative analytical separations
Grade 1 Qualitative Filter Papers (11 µm particle retention) are available in a variety of sizes and formats including circles, sheets and prepleated filters. They are also available in FilterCup format, a convenient, 250 ml capacity disposable 70 mm filter funnel molded from polypropylene with an integral, heat-bonded filter.
How well do you know your filter paper grades and why you use them? To find out, read our blog Back to Basics Part 1: A Guide to Types of Whatman Filter Paper Grades.
Ready for more? Read our 6-part blog series Whatman paper filtration 101 or our complete lab filtration blog.
Looking for a filter paper, membrane filter, or syringe filter? Let Cytiva help you find the optimal filter for your needs to ensure reliable analysis.
Product specifications
Showing 35 products
Whatman Grade 1 qualitative filter paper, standard grade, circle, 15 mm (500/pk)
1001-0155
In stock60 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 20 mm (400/pk)
1001-020
In stock35 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 25 mm (400/pk)
1001-025
In stock43 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 30 mm (400/pk)
1001-030
In stock19 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 32 mm (100/pk)
1001-032
In stock51 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 42.5 mm (100/pk)
1001-042
In stock3039 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 45 mm (100/pk)
1001-045
In stock301 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 47 mm (100/pk)
1001-047
In stock597 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 55 mm (100/pk)
1001-055
In stock2285 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 70 mm (100/pk)
1001-070
In stock1076 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 85 mm (100/pk)
1001-085
In stock694 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 90 mm (100/pk)
1001-090
In stock3012 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 110 mm (100/pk)
1001-110
In stock1181 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 125 mm (100/pk)
1001-125
In stockMore than 5000
Whatman Grade 1 qualitative filter paper, standard grade, circle 150 mm, (100/pk)
1001-150
In stock786 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 185 mm (100/pk)
1001-185
In stock622 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 240 mm (100/pk)
1001-240
In stock203 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 270 mm (100/pk)
1001-270
In stock105 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 320 mm (100/pk)
1001-320
In stock155 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 25 mm (100/pk)
1001-325
In stock212 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 30 mm (100/pk)
1001-329
In stock46 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 385 mm (100/pk)
1001-385
In stock22 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 400 mm (100/pk)
1001-400
In stock30 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 500 mm (100/pk)
1001-500
In stock11 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 10 mm (500/pk)
1001-6508
In stock235 available
Whatman Grade 1 qualitative filter paper, standard grade, sheet, 75 × 100 mm (500/pk)
1001-824
In stock10 available
Whatman Grade 1 qualitative filter paper, standard grade, sheet, 460 × 570 mm (100/pk)
1001-917
In stock54 available
Whatman Grade 1 qualitative filter paper, standard grade, sheet, 600 × 600 mm (100/pk)
1001-929
In stock35 available
Whatman Grade 1 qualitative filter paper, standard grade, sheet, 580 × 680 mm (100/pk)
1001-931
In stock24 available
Whatman Grade 1 qualitative filter paper, standard grade, sheet, 26 × 31 mm (100/pk)
1001-813
Selling fast1 available
Whatman Grade 1 qualitative filter paper, standard grade, sheet, 460 × 570 mm (500/pk)
1001-918
Selling fast3 available
Whatman Grade 1 qualitative filter paper, standard grade, circle, 76.2 mm (500/pk)
1001-10035
Stock on request
Whatman Grade 1 qualitative filter paper, standard grade, circle, 90 mm (5,000/pk)
1001-10048
Stock on request
Whatman Grade 1 qualitative filter paper, standard grade, roll, 47 cm × 100 m (1 roll)
1001-734
Stock on request
Whatman Grade 1 qualitative filter paper, standard grade, sheet, 580 × 680 mm (500/pk)
1001-932
Stock on request
Product availability is not guaranteed and subject to change.
