13 best quantitative lab filter paper
Quantitative lab filter paper is a type of specialized filtration medium used in scientific laboratories and industrial settings for various filtration applications. It is designed to quantitatively separate and collect solid particles from liquids or gases based on their size and composition. Here are some key characteristics and uses of quantitative lab filter paper:
Filtration Efficiency: Quantitative lab filter paper is known for its high filtration efficiency, making it suitable for applications where precise particle separation and collection are essential.
Particle Retention: These filter papers are manufactured with specific pore sizes to retain particles of defined sizes. The choice of filter paper depends on the size of particles you want to separate.
Composition: They are typically made from cellulose fibers or a combination of cellulose and other materials like glass fibers.The choice of material depends on the chemical compatibility and intended use.
Weight and Thickness: Filter papers come in various weights and thicknesses to accommodate different filtration requirements. Thicker papers may have greater particle-holding capacity.
Gravimetric Analysis: Quantitative filter papers are often used in gravimetric analysis, where the collected solid particles are weighed to determine their mass or concentration in the original sample.
Applications: These filter papers find applications in a wide range of industries, including pharmaceuticals, environmental analysis, food and beverage processing, and chemical manufacturing, among others.
Grades and Types: Quantitative filter papers are available in various grades, such as ashless, hardened, and non-hardened, to suit different filtration needs and chemical compatibility requirements.
Wet Strength: Some filter papers are designed to have wet strength, allowing them to maintain their structural integrity even when wet, which is essential for certain filtration processes.
Specialized Varieties: In addition to standard quantitative lab filter papers, there are specialized varieties, such as membrane filters, which offer precise filtration capabilities for applications like microbiology and air quality monitoring.
Compatibility: It's important to choose the right type of filter paper based on the chemicals and substances being filtered, as well as the desired filtration speed and efficiency.
Quantitative lab filter paper plays a crucial role in ensuring the accuracy and reliability of laboratory analyses and industrial processes that involve separating solids from liquids or gases. Proper selection and use of filter papers are essential to achieve accurate results in various scientific and industrial applications.
Below you can find our editor's choice of the best quantitative lab filter paper on the market
Whatman 1004-055 Quantitative Filter Paper Circles, 20-25 Micron, 3.7 s/100mL/sq inch Flow Rate, Grade 4, 55mm Diameter (Pack of 100)
Whatman
Product description
This Whatman 5.5cm, 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 precipitates such as ferric hydroxide and aluminium hydroxide. It is very useful as a rapid filter for routine cleanup of biological fluids or organic extracts during analysis. This filter paper is used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical. Retention: 20-25µm. Dimensions: 5.5cm. 100/Pack. Whatman #: 1004-055.
- 5.5cm
- Grade 4
- Used in qualitative analytical techniques to determine and identify materials
- Extremely fast filtering; provides excellent retention of coarse particles (20-25µm) and gelatinous precipitates such as ferric hydroxide and aluminium hydroxide
- Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical
User questions & answers
| Question: | What is the thickness of the paper in mm |
| Answer: | Nominal thickness is .21 mm. (210 µm) |
| Question: | Is this quantitative or qualitative paper |
| Answer: | It's a Qualitative Paper |
| Question: | Can I use it in a coffee machine filter with a handle |
| Answer: | Why would you? These are quantitative filter papers for laboratory use, not for coffee machines. |
Premium Filter Paper, 15cm, Pack of 100
EISCO
Product description
EISCO Premium Filter Paper, 15cm, Pack of 100
(100) Circles
Premium quality filter paper for use in labs. WHATMAN No.1 equivalent.
User questions & answers
| Question: | Is the paper pink |
| Answer: | It is white. |
| Question: | How many microns is this filter |
| Answer: | 8-10 microns. made of pure cellulose. |
| Question: | Do they tear easily |
| Answer: | No |
| Question: | Can these be used filtering liquids for human consumption |
| Answer: | This filter paper is designed for educational use only. |
Membrane Solutions Quantitative Filter Paper Circles, 150mm Diameter Ashless Lab Filter Paper, Fast Speed (20~25μm), Pack of 100
Membrane Solutions Corp
- Filter paper is composed of cotton fibercellulose filter paper, 150mm Diameter, Fast（20~25μm）
- Quantitative Filter Paper has little effect on the analysis result, suit for precision quantitative analysis. The amount of ash produced after ashing does not exceed 0.0009%.
- Quantitive Ashless Filter Paper widely used for quantitative and gravimetric analysis. During the manufacturing, producer use acid to make the paper ash-less and achieve high purity
- Filter paper is used in conjunction with laboratory holders and funnels, or with paper cones and funnels
- We can provide Lifetime Support Guarantee and 30-Day Money Back Guarantee. Have any questions, please contact me promptly.
Product features
Membrane Solutions Ashless Quantitative Filter Paper, Fast（20~25μm）, 150mm Diameter
Quantitative filter paper is mainly used for quantitative chemical analysis of the gravimetric analysis of the pilot trial and relevant analysis experiment. The filter paper can be applied to scientific research, industry, agriculture, health, tertiary institutions, teaching experiments, environmental protection test, etc.
Gravimetric Analysis
Quantitative filter papers are the choice for gravimetric analysis. High purity hardened filters have a high wet-strength and are chemical resistant to handle vacuum filtration or acid/alkali solutions.
Ashing Weighing Analysis
The role of quantitative filter paper is mainly used for ashing weighing analysis experiments after filtration. The ash weight after ashing of each filter paper is a fixed value.
NOTE:
Filter paper is best not to filter hot concentrated H₂SO₄ (Sulfuric acid) or HNO3 (Nitric acid ) solutions.
Filter paper not melting in acid, alkali and other organic solvents impure substances
UPlama 200PCS Qualitative Filter Paper Circles,Lab Supply Ashless Quantitative Filter Paper,94mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed
UPlama
Product description
Package Includes: 200PCS Qualitative Filter Paper Circles
Filter paper diameter: 94mm
Filtration Speed: 35 – 70 sec
Ash content: ≤0.15%
science : Routine clean-up of insoluble liquids such as biological fluids or organic extracts in labs
food : Determination Sodium Chloride in foodstuffs
wine : Filtration of musts
metalurgy : Determination of silicon impurities in pig iron and steel
environment : Fast flowing air and exhausts monitoring when the collection of fine particles is not critical.
- Filter paper diameter: 94mm
- Has the maximum degree of fine particle filtration (2.5μm) in the qualitative range; capable of retaining the fine precipitates encountered in chemical analysis
- Collect large particulate in fast moving air or fumes
- Filtration Speed: 35 – 70 sec, Ash content: ≤0.15%
- Compatible with StonyLab Buchner Filtering Funnel - 500ml
StonyLab Quantitative Filter Paper Circles, 94mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100
StonyLab Scientific
Product description
SKU: XL-815478
Description
Coarse cellulose filter papers remove particles > 20 µm.
Filtration Speed: 35 – 70 sec.
Ash content: ≤0.01%.
StonyLab ensures high quality products and premium customer service. If received damaged, please contact us immediately. We will solve it until satisfied.
- Filter paper diameter: 94mm
- Coarse cellulose filter papers remove particles > 20 µm
- Filtration Speed: 35 - 70 sec
- Ash content: ≤0.01%
- Compatible with StonyLab Porcelain Buchner Funnel 100mm
Whatman 1441-110 Quantitative Filter Paper Circles, 20 Micron, Grade 41, 110mm Diameter (Pack of 100)
Whatman
Product description
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 determining gaseous compounds at high flow rates. This filter is also available in the Whatman Disposable Filter Funnel. Retention: 20µm. Diameter: 11.0cm. 100/Pack. Whatman #: 1441-110.
- Diameter: 11.0cm
- Retention: 20µm
- Fastest ashless filter paper
- 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
Whatman 1005-110 Quantitative Filter Paper Circles, 2.5 Micron, 94 s/100mL/sq inch Flow Rate, Grade 5, 110mm Diameter (Pack of 100)
Whatman
Product description
This Whatman 11.0cm, grade 5, cellulose filter paper is used in qualitative analytical techniques to determine and identify materials. It has the maximum degree of fine particle filtration (2.5µm) in the qualitative range. It is capable of retaining the fine precipitates encountered in chemical analysis. This filter paper has a slow flow rate. This is an excellent clarifying filter for cloudy suspensions and for water and soil analysis. Retention: 2.5µm. Diameter: 11.0cm. 100/Pack. Whatman #: 1005-110.
- 11.0cm
- Grade 5
- Used in qualitative analytical techniques to determine and identify materials
- Has the maximum degree of fine particle filtration (2.5µm) in the qualitative range; capable of retaining the fine precipitates encountered in chemical analysis
- Slow flow rate; excellent clarifying filter for cloudy suspensions and for water and soil analysis
User questions & answers
| Question: | Can this be put in the pressure cooker and reused |
| Answer: | Most likely not.. Depending on your applications and what exactly you are doing, you will probably need to use a new filter for each test. - Kyle, Data Support Company |
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)
Whatman
Product description
This Whatman 7.0cm, 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 precipitates such as ferric hydroxide and aluminium hydroxide. It is very useful as a rapid filter for routine cleanup of biological fluids or organic extracts during analysis. This filter paper is used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical. Retention: 20-25µm. Dimensions: 7.0cm. 100/Pack. Whatman #: 1004-070.
- 7.0cm
- Grade 4
- Used in qualitative analytical techniques to determine and identify materials
- Extremely fast filtering; provides excellent retention of coarse particles (20-25µm) and gelatinous precipitates such as ferric hydroxide and aluminium hydroxide
- Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical
User questions & answers
| Question: | Are these filters food safe |
| Answer: | Yes |
| Question: | What does “s” represent in the specification of the product description? 3.7s |
| Answer: | The "s" stands for "seconds" . So, 3.7 seconds |
Whatman 1442-090 Quantitative Filter Paper Circles, 2.5 Micron, Grade 42, 90mm Diameter (Pack of 100)
Whatman
Product description
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. Retention: 2.5µm. Diameter: 9.0cm. 100/Pack. Whatman #: 1442-090.
- Diameter: 9.0cm
- Retention: 2.5µm
- A world standard for critical gravimetric analysis
- 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
User questions & answers
| Question: | Are these ashless filter papers |
| Answer: | Yes, all whatman 1440 series filters are ashless. |
| Question: | What diameter is this |
| Answer: | The full product description shows 3 diameters of grade 42 filter paper available, ranging from 4.5mm ($31) to 9.0mm ($39). |
UPlama 200PCS Qualitative Filter Paper Circles,Lab Supply Ashless Quantitative Filter Paper,15cm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed
UPlama
Product description
Package Includes: 200PCS Qualitative Filter Paper Circles
Filter paper diameter: 15cm
Filtration Speed: 35 – 70 sec
Ash content: ≤0.15%
science : Routine clean-up of insoluble liquids such as biological fluids or organic extracts in labs
food : Determination Sodium Chloride in foodstuffs
wine : Filtration of musts
metalurgy : Determination of silicon impurities in pig iron and steel
environment : Fast flowing air and exhausts monitoring when the collection of fine particles is not critical.
- Filter paper diameter: 15cm
- Has the maximum degree of fine particle filtration (2.5μm) in the qualitative range; capable of retaining the fine precipitates encountered in chemical analysis
- Collect large particulate in fast moving air or fumes
- Filtration Speed: 35 – 70 sec, Ash content: ≤0.15%
- Compatible with StonyLab Buchner Filtering Funnel - 500ml
Whatman 1005-185 Quantitative Filter Paper Circles, 2.5 Micron, 94 s/100mL/sq inch Flow Rate, Grade 5, 185mm Diameter (Pack of 100)
Whatman
Product description
This Whatman 18.5cm, grade 5, cellulose filter paper is used in qualitative analytical techniques to determine and identify materials. It has the maximum degree of fine particle filtration (2.5µm) in the qualitative range. It is capable of retaining the fine precipitates encountered in chemical analysis. This filter paper has a slow flow rate. This is an excellent clarifying filter for cloudy suspensions and for water and soil analysis. Retention: 2.5µm. Diameter: 18.5cm. 100/Pack. Whatman #: 1005-185.
- 18.5cm
- Grade 5
- Used in qualitative analytical techniques to determine and identify materials
- Has the maximum degree of fine particle filtration (2.5µm) in the qualitative range; capable of retaining the fine precipitates encountered in chemical analysis
- Slow flow rate; excellent clarifying filter for cloudy suspensions and for water and soil analysis
Whatman 1006-070 Quantitative Filter Paper Circles, 3 Micron, 35 s/100mL/sq inch Flow Rate, Grade 6, 70mm Diameter (Pack of 100)
Whatman
Product description
This Whatman 7.0cm, grade 6, cellulose filter paper is used in qualitative analytical techniques to determine and identify materials. It has excellent fine particle filtration (3µm) in the qualitative range. It is capable of retaining the fine precipitates encountered in chemical analysis. This filter paper is twice as fast as grade 5, with similar fine particle retention. It is often specified for boiler water analysis applications. It is an excellent clarifying filter for cloudy suspensions and for water and soil analysis. Retention: 3µm. Diameter: 7.0cm. 100/Pack. Whatman #: 1006-070.
- 7.0cm
- Grade 6
- Used in qualitative analytical techniques to determine and identify materials; excellent clarifying filter for cloudy suspensions and for water and soil analysis
- Excellent fine particle filtration (3µm) in the qualitative range; capable of retaining the fine precipitates encountered in chemical analysis
- Often specified for boiler water analysis applications
Longdex Filter Paper 100PCS 9cm Laboratory Supply Ashless Quantitative Circles Filter Paper Medium Speed Cellulose Filter Paper
Longdex
Product description
Specification:
Material: cotton fiber
Diameter: 9cm/3.54in
Weight: about 70g/box
Packing quantity: 100PCS
Feature
Commonly used in engine oil testing, laboratory and production of rain flowers, etc.
The filter paper is made of cotton fiber and is made by different methods according to different purposes. Because it is made of fiber products, its surface has numerous small holes for liquid particles to pass through, while larger solid particles cannot pass. This property allows separation of liquid and solid mixed together.
Strong filtering, precise and detailed, strong absorption.
- Used for: These round filters are designed to identify and identify materials in qualitative analysis projects, and are often used in engine oil testing, laboratories, and the production of rain flowers and other filtration projects.
- Performance: The medium-speed round paper filter disc has the highest fine particle filtration degree (2.5 um) in the qualitative range, and can retain the fine sediment found in the analysis process.
- Material information: The medium-speed paper filter is made of paper material and is safe to use. It has a circular design with good filtering capacity and can provide a smooth use experience.
- Filter paper details: These round filter papers are approximately. 3.54 inches in diameter, medium filtration speed, dirt content is not more than 0.15% in about 35-70 seconds.
- Package content: 100PCS round paper filters, enough to meet your filtering needs.
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