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WHATMAN FILTER PAPERS
Cellulose Filter Papers
WHATMAN Qualitative Standard Filter Paper
Product Price: Rs 1,000 / BoxGet Best Price
Minimum Order Quantity: 1 Box
Product Details:
| Usage/Application | Liquid Filtration |
| Brand | WHATMAN |
| Material | Fibre |
| Model Name/Number | Grade 597L |
| Shape | Rectangular |
| Automation Type | Semi-Automatic |
| Color | White |
Whatman Grade 1 Qualitative Filter Papers
A widely used standard grade filter paper for routine applications with medium retention and flow rate. It covers a wide range of laboratory applications and is frequently used for clarifying liquids.
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 filters.
Specification
Grade :Grade 1
Grade Type :Standard
A standard grade filter used for a wide variety of analytical routine applications in different industries like food testing (e.g., determination of fat content) or removal of carbon dioxide and turbidity from beverages (e.g., beer analysis).
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 filters.
Grade 597: 4-7 µm
A medium fast filter paper with medium to fine particle retention. Used for a wide variety of analytical routine applications in different industries like food testing (e.g., determination of fat content) or removal of carbon dioxide and turbidity from beverages (e.g., beer analysis). Available prepleated as Grade 597 ½.
Specification
Grade :Grade 597
Grade Type :Standard
Grade 602EH 1/2 cellulose filters for very fine precipitates are used in qualitative analytical techniques to determine and identify materials. These filters are intended to be used for recovery of microfine ultrapure crystalline components (<1um) in alkaline tests in waste analysis (e.g soils, filter, dust, ash, ore/slag waste). Available prepleated as Grade 602EH ½.
Specification
Grade :Grade 602eh
Grade Type :Standard
Additional Information:
- Production Capacity: 1000
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WHATMAN Quantitative Hardened Low Ash Filter Paper
Product Price: Rs 1,000 / BoxGet Best Price
Minimum Order Quantity: 1000 Box
Product Details:
| Usage/Application | Liquid Filtration |
| Brand | WHATMAN |
| Material | Fiber |
| Model Name/Number | Grade 52 |
| Shape | Rectangular |
| Automation Type | Semi-Automatic |
| Color | White |
Whatman Quantitative Filter Paper, Hardened Low Ash, Grade 50
GE’s thinnest Whatman brand hardened filter paper, highly glazed Grade 50 supports vacuum filtration in Büchner funnels or Hirsch funnels and enables strong retention of very fine crystalline precipitates.
Thinner filter design (average thickness 115 µm) than most Büchner filter papers
Acid-treated for high wet-strength and chemical resistance
Nominal particle retention of 2.7 µm
Slow flow rates (Herzberg filtration speed 2685 s)
High purity and low ash content (0.015% ash maximum)
Compatible with Hirsch or Büchner funnels
GE offers three grades of hardened low ash filters. All three are designed for use in Hirsch and Büchner funnel applications and can be customized for an exact fit.
Wet-strengthened filters for vacuum filtration
For many vacuum filtration applications, a thin filter paper with a slow flow rate and excellent wet strength can maintain sample quality and purity. Because Grade 50 thin filter papers are hardened to minimize fiber shredding, they are a good choice for use as carriers in integrated circuits.
Grade 50 thin filter paper from GE Healthcare’s Life Sciences business is very strong when wet. It will withstand wet handling and precipitate removal by scraping.
Grade 50 is also available in Smear Tab format for wipe testing (e.g., testing of surfaces for radionuclide contamination).
Specification
Grade :Grade 50
Format :Circle
GE’s Whatman Grade 52 is a general-purpose filter paper for quantitative analysis in Büchner funnel and other vacuum filtrations. The acid-hardened surface and low ash content enable efficient precipitate recovery.
Manufactured from high-quality cotton linters and treated to remove trace metals
High wet-strength and chemical resistance
Nominal particle retention of 7 µm
Medium flow rate (Herzberg filtration speed 235 s)
High purity (0.015% ash maximum)
Compatible with Hirsch or Büchner funnel applications
Büchner funnel vacuum filtration
The quality of analysis resulting from vacuum filtration using a Hirsch or Büchner funnel relies on using a high-quality filter that avoids introducing artifacts into measurement. GE’s Grade 52 hardened filter paper is acid-treated to prevent fiber shredding during vacuum filtration or precipitate collection.
Specification
Grade :Grade 52
Format :Circle
GE’s Whatman Grade 54 filter paper has high wet strength and a larger nominal particle retention rating than comparable Büchner filtration papers, enabling fast vacuum filtration of coarse precipitates. Acid-treated for high wet-strength and chemical resistance
Large nominal particle retention rating of 22 µm
Fast filtration speed (Herzberg filtration speed 39 s)
High purity (0.015% ash maximum)
Compatible with Büchner funnel or Hirsch funnel applications
Fast filters for vacuum filtration
Whatman Grade 54 filter paper can sustain fast vacuum or suction filtration in a Büchner or Hirsch funnel. The hard, smooth, acid-treated Grade 54 fast filter paper supports collection of coarse and gelatinous precipitates with minimal fiber shredding, even when wet.
Specification
Grade :Grade 54
Format :Circles
Additional Information:
- Item Code: 52
- Production Capacity: 100
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WHATMAN Glass Microfiber Filter With Binder
Product Price: Rs 1,000 / BoxGet Best Price
Minimum Order Quantity: 1000 Box
Product Details:
| Usage/Application | LIQUID FILTRATION |
| Brand | WHATMAN |
| Material | FIBER |
| Shape | Rectangular |
| Automation Type | Semi-Automatic |
| Color | WHITE |
Whatman Grade GF 10 Glass Microfiber Filters With Binder
Whatman Grade GF 10 glass microfiber filters from GE Healthcare’s Life Sciences business are made from borosilicate glass and strengthened with an organic binder to provide high mechanical stability.
Temperature resistance up to 180°C
Strengthened with high-quality organic binder for high mechanical stability
Medium filtration speed
Can be used as a roll filter in automated applications
Grade GF 10: Organic binder
GE offers several options for glass microfiber filters with organic or inorganic binders. Search the range of Whatman glass filters with binder to find the right filter for your application.
Automatic sampling and roll filter applications
GE’s Whatman Grade GF 10 glass filters can be used as a weighing aid during infrared weighing or for automatic sampling applications. GF10 also comes in reel format for use as a roll filter in automatic air filtration units.
Looking for a filter paper, membrane filter, or syringe filter? Let GE help you find the optimal filter for your needs to ensure reliable analysis.
Specification
Parameter :Grade GF 10 Glass Filter with Organic Binder, 100 mm circle (100 pcs)
Application :Used as a weighing aid for infrared weighing and as a roll filter in automatic air filtration units.
GE’s Whatman Grade GF 8 glass microfiber filters are used for filtration of coarse particles. GF 8 offers faster filtration and a higher air flow rate compared to the similar Grade GF 9 filters.
Nominal particle retention of 3 µm
Air flow rate of 12 s/100 ml/1.56 cm²
Inorganic binder for increased strength and temperature resistant up to 500°C
Fast filtration speed
Can be used as a pre-filter for dense samples
Function as air pollution filters for detecting furans, PCB, and other chemicals
Environmental pollution analyses often require binder-strengthened glass filters to support heavy samples. Several options are available in the Whatman range of glass filters with binder from GE Healthcare’s Life Sciences business.
Air pollution filters for furans and other pollutants
With the added strength of an inorganic binder, grade GF 8 glass microfiber filters serve as air pollution filters by retaining a range of heavy particles found in vapor samples. Other applications include: Air pollution filters for PCB*, DDE, DDT, furans, and dioxin retention for analysis
Pollution measurements in industrial, urban, and populated areas
Workplace dust measurements
Measurement of dust fraction in technical gases
Dust-collecting effectiveness testing
Specification
Parameter :Grade GF 8 Coarse Particle Filter with Binder, 47 mm circle (200 pcs)
Grade :Grade GF 8
HGF61 glass fiber tape provides strength, efficiency, reliability and consistency of data quality in continuous air monitoring.
Meets regulatory requirements for continuous air particulate sampling globally
Retains 99.99% of air particulate at 0.3 µm
Suitable for PM1, PM2.5, PM10 and TSP sampling and for beta-attenuation method
Provides excellent consitency of data quality in air sampling
Effective in both humid and dry environments
Compatable with most continuous air sampling devices.
Specification
Parameter :HGF61 glass fiber tape
Application :Air monitor
Additional Information:
- Item Code: 92
- Production Capacity: 100
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Whatman Lab Essential
Product Price: Rs 1,000 / BoxGet Best Price
Minimum Order Quantity: 1000 Box
Product Details:
| Usage/Application | LIQUID FILTRATION |
| Brand | WHATMAN |
| Material | FIBER |
| Shape | Rectangular |
| Automation Type | Semi-Automatic |
| Color | WHITE |
Whatman Lens Cleaning Tissue
High-quality whatman lens cleaning tissue, which is chemically pure and free from silicones and other additives. Soft texture will not damage lenses or optical surfaces.
Chemically pure tissue is free from silicones and other additives.
High absorbency leads to increased safety upon removal of surface moisture and grease.
Very strong and leaves no fibers.
Lenses and other optical surfaces made from glass, quartz, or plastic can be easily scratched if they are not cleaned with a very soft tissue. High-quality whatman lens cleaning tissue provides the solution. Iit can be relied on to carefully and thoroughly remove surface moisture and grease.
Specification
Parameter :Grade 105 Lens Cleaning Tissue, sheet, 200 × 300 mm
Grade :Grade 105 [Sheets]
Why Benchkote sheet for lab ÄKTA systems?
Cover the top buffer tray with Benchkote sheet and protect from buffer spillages and salt deposits.
Simplify daily and weekly preventive maintenance of the top buffer tray of your ÄKTA systems Benchkote sheet
Smooth, absorbent Whatman paper quickly absorbs spills.
Laminated polyethylene layer prevents flow-through to the working surface.
Fits the top buffer tray on ÄKTA avant, ÄKTA pure and ÄKTA start protein purification systems.
Offered in three convenient pack sizes: 10/pk, 25/pk and 50/pk sheets.
Convenient and easy to use.
Benchkote sheets are manufactured of absorbent, impermeable material designed to protect lab surfaces against hazardous spills. The high-quality, smooth, and absorbent Whatman™ paper, quickly absorbs liquid spills, and laminated polyethylene layer prevents flow-through to the working surface.
Specification
Parameter :Benchkote sheet for AKTA start 25/PK
Material :Absorbent paper and laminated polyethylene
System compatibility :ÄKTA start
Pack size :25 pieces
Grade B-2 Whatman weighing paper from GE dissolves residue-free in acid solution, which is critical in applications such as Kjeldahl analysis of nitrogen in soil.
Thin (0.04 mm) and lightweight (43 g/m²)
Transparent and smooth parchment surface
Simple weighing out and sample transfer
Reliable for quantitative transfer
Range of sheet sizes for ease-of-use
Low nitrogen paper that is residue-free for accurate chemical analysis
GE also offers weighing boats for Kjeldahl analysis.
Sheet sizes
Packs of 500 Grade B-2 Whatman weighing paper are available in four sheet sizes: 76.2 × 76.2 mm (3 × 3 inch) sheets
101.6 × 101.6 mm (4 × 4 inch) sheets
152.4 × 152.4 mm (6 × 6 inch) sheets
304.8 × 304.8 mm (12 × 12 inch) sheets
Specification
Parameter :Kjeldahl Analysis Weighing Paper, Grade B-2, 5 × 6 in (500 sheets)
Dimensions :152.4 x 152.4 mm (6 x 6 in)
Absorbent paper strips for the removal of excess liquids, e.g., from microscope specimens.
Specification
Parameter :556 Drypads 37x100 mm 100/Pk
Grade :Grade 556
Additional Information:
- Item Code: 556
- Production Capacity: 100
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Whatman Membranes - Circles, Sheets, And Reels
Product Price: Rs 700 / BoxGet Best Price
Minimum Order Quantity: 1000 Box
Product Details:
| Usage/Application | LIQUID FILTRATION |
| Brand | WHATMAN |
| Material | FIBER |
| Shape | Rectangular |
| Automation Type | Semi-Automatic |
| Color | WHITE |
Whatman Sterile Mixed Cellulose Ester Membranes ‒ 0.2 Μm
Whatman sterile MCE membrane filters from GE Healthcare’s Life Sciences business are plain or gridded filters designed to support routine cell counting and particle detection.
Excellent contrast for easy particle detection
High internal surface area for sample adsorption
High dirt loading capacity
Biologically inert with good thermal stability
Uniform microporous structure delivers high flow rates
GE’s Whatman MCE membrane filters are composed of cellulose acetate and cellulose nitrate, giving the membrane a more uniform surface than pure nitrocellulose filters. Other sterile mixed cellulose ester membranes are available.
Sterile microbial cell counting
GE’s Whatman MCE membrane filters are biologically inert and possess a number of features that enable contaminant-free cell counting. They are manufactured using a nontoxic ink and without surfactants, decreasing the risk of inhibiting bacterial growth for culturing to determine microbial contamination in microbiological quality control.
Specification
Parameter :Mixed Cellulose Ester Filter, ME Range (ME 24), plain, 0.2 µm pore size, 47 mm circle (100 pcs)
Diameter :47 mm
Anopore inorganic membranes (Anodisc), circles, with support ring
High pore density and narrow pore size distribution make it an extremely precise membrane.
Wide solvent compatibility reduces the need to stock a variety of membranes in the laboratory.
No additives used in the manufacturing process ensures minimal extractables and no sample contamination.
Extremely low protein binding minimizes sample loss.
Virtually transparent when wet making it highly suitable for microscopy studies.
Anopore inorganic membrane (Anodisc) is well suited for a wide range of laboratory filtration applications. This novel material has a precise, nondeformable honeycomb pore structure with no lateral crossovers between individual pores, that filters at precisely the stated cut-off, allowing no larger sized particles to pass through the membrane.
Anopore inorganic membrane is composed of a high-purity alumina matrix that is manufactured electrochemically. The membrane also exhibits low protein binding, has minimal autofluorescence, is nontoxic, and supports cellular growth.
Specification
Parameter :Anodisc Circle with Support Ring, 47 mm, 0.02 µm pore size.
Whatman PTFE membrane filters from GE Healthcare’s Life Sciences business are chemically stable and inert, making them suitable for use with aggressive organic solvents, strong acids, and alkalis.
The TE range features polypropylene support material for improved strength and handling
Temperature resistant up to 120°C
Can withstand aggressive solvents, liquids, and gases that damage other membranes
GE’s Whatman PTFE membrane filters come in a variety of pore sizes and diameters. Browse the PTFE membrane range for custom and WTP filter options.
Additional Information:
- Production Capacity: 100
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WHATMAN Nitrocellulose (NC) Membranes
Product Price: Rs 900 / BoxGet Best Price
Minimum Order Quantity: 1000 Box
Product Details:
| Usage/Application | LIQUID FILTRATION |
| Brand | WHATMAN |
| Material | FIBER |
| Shape | Square |
| Automation Type | Semi-Automatic |
| Color | WHITE |
Whatman Non-Sterile Cellulose Nitrate Membrane Filters ‒ 0.1 Μm
GE’s cellulose nitrate Whatman membrane filters offer narrow sub-micron pore size distribution and low extractable levels. Very fine particles can be retained for recovery or microscopic viewing.
Standard membrane filter for most applications involving particles and cells from 0.1 µm to 12.0 µm
Samples are retained on the surface for easy microscopic analysis and recovery
Temperature-resistant cellulose nitrate can withstand autoclaving up to 121°C with no loss in integrity
Whatman membrane filters exhibit a low shrinkage during autoclaving, reducing tearing
High strength and flexibility prevent tearing during handling, loading, and autoclaving
Specification
Parameter :Plain Cellulose Nitrate Membrane, 0.1 µm pore size, 25 mm circle (100 pcs)
Autoclavable :Ye
Cellulose nitrate membranes, circles, plain
Narrow pore size distribution for improved surface capture and analysis.
Low levels of extractables to ensure sample integrity.
Recommended for the majority of routine applications, this membrane is manufactured under strictly controlled conditions. The user will benefit from the performance improvements that are now available in Whatman membrane filters, including very narrow pore size distribution and low levels of extractables.
Higher strength and flexibility
Most membranes are inherently brittle and difficult to handle; it is not uncommon for filters to be damaged during loading into holders or while in use. Whatman cellulose nitrate membrane filters have a noticeably improved flexibility and are made to tolerate abuse during handling, loading, and autoclaving without sacrificing integrity. These membranes are among the strongest of their type available, as measured and compared by burst pressure tests.
Specification
Parameter :Cellulose Nitrate Membrane Circle, plain, 0.8 µm pore size, 47 mm
Application :Sample preparation Microbiological studies Filtration of aqueous solutions
Autoclavable :Ye
Cellulose nitrate membranes, circles, plain
Narrow pore size distribution for improved surface capture and analysis.
Low levels of extractables to ensure sample integrity.
Recommended for the majority of routine applications, this membrane is manufactured under strictly controlled conditions. The user will benefit from the performance improvements that are now available in Whatman membrane filters, including very narrow pore size distribution and low levels of extractables.
Higher strength and flexibility
Most membranes are inherently brittle and difficult to handle; it is not uncommon for filters to be damaged during loading into holders or while in use.
Specification
Parameter :Cellulose Nitrate Membrane Circle, plain, 5 µm pore size, 90 mm
Application :Sample preparation Microbiological studies Filtration of aqueous solutions
Autoclavable :Yes
Additional Information:
- Production Capacity: 100
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WHATMAN Quartz Microfiber Filter
Product Price: Rs 900 / BoxGet Best Price
Minimum Order Quantity: 1000 Box
Product Details:
| Usage/Application | LIQUID FILTRATION |
| Brand | WHATMAN |
| Material | FIBER |
| Shape | Rectangular |
| Automation Type | Semi-Automatic |
| Color | WHITE |
Whatman QM-A Quartz Microfiber Filters
GE’s high-purity quartz microfiber filters are used in many air sampling filter applications, including sampling of acidic gases, stacks, flues, and aerosols. Filters are suitable for PM-10 sampling and analysis.
Temperature resistant up to 800°C
Binder-free
GE Healthcare’s Life Sciences business offers three types of quartz fiber filters.
Whatman quartz microfiber filters
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 microfiber filters are therefore applicable for particulate monitoring and heavy metal analysis.
Whatman QM-A filter circles and sheets
QM-A quartz microfiber filters from GE come in a wide range of circle diameters, as well as 25-piece sheets. QM-A sheets (1851-8866) are sequentially numbered according to U.S. Environmental Protection Agency (EPA) standards and are suitable for most applications.
Looking for a filter paper, membrane filter, or syringe filter? Let GE help you find the optimal filter for your needs to ensure reliable analysis.
Specification
Parameter :Quartz Air Sampling Filter, Grade QM-A, 150 mm circle (100 pcs)
Application :Used for air sampling in acidic gases, stacks, flues and aerosols, particularly at high temperatures up to 500° C and in PM-10 testing.Filters for Use in US EPA PM10 Ambient air monitoring.
Grade :Grade QM-A.
High-purity Whatman QM-B quartz fiber filters from GE Healthcare’s Life Sciences business are designed for use in specific air monitoring applications.
QM-B filters are similar to GE’s standard QM-A quartz fiber filters, which are recommended more commonly for air testing applications. By comparison, QM-B is approximately twice as heavy, twice as thick, and offers slower flow rates.
Because of these characteristics, QM-B can be used in air monitoring applications requiring increased strength or durability.
The Whatman range of high-purity quartz filter options also includes Grade QM-A and Grade QM-H filters, which can withstand temperatures up to 800°C and 900°C, respectively. Each filter grade has unique strengths for air monitoring applications.
Looking for a filter paper, membrane filter, or syringe filter? Let GE Let GE help you find the optimal filter for your needs to ensure reliable analysis.
Specification
Parameter :Quartz Air Sampling Filter, Grade QM-B, 42 mm circle (50 pcs)
Grade :QMB
Diameter :42.5 mm.
Whatman QM-H from GE is a pure quartz fiber filter for use in testing acidic gases, stacks, flues, and aerosols. Whatman QM-H has low heavy metal content so is well-suited for heavy metals analysis.
High stability up to 900°C
High filtration efficiency
Binder-free
Minimal reactivity with biological or chemical components
The Whatman range of quartz fiber filters from GE Healthcare’s Life Sciences business also includes Grades QM-A and QM-B for air monitoring applications.
Whatman QM-H sizes
GE’s pure quartz fiber filters come in 50-piece packs with four diameters:
37 mm
47 mm
90 mm
150 mm
Specification
Parameter :Grade QM-H Quartz Filter, circle, 150 mm
Grade :Grade QM-H
Basis Weight :85 g/m².
Additional Information:
- Item Code: QM-A
- Production Capacity: 100
- Delivery Time: Immediate
- Packaging Details: Carton Box
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WHATMAN Qualitative Hardened Ashless Filter Paper
Product Price: Rs 550 / BoxGet Best Price
Minimum Order Quantity: 1 Box
Product Details:
| Usage/Application | Liquid Filtration |
| Brand | WHATMAN |
| Material | Fiber |
| Model Name/Number | Grade 52 |
| Shape | Round |
| Automation Type | Semi-Automatic |
| Color | White |
GE’s thinnest Whatman brand hardened filter paper, highly glazed Grade 50 supports vacuum filtration in Büchner funnels or Hirsch funnels and enables strong retention of very fine crystalline precipitates.
Thinner filter design (average thickness 115 µm) than most Büchner filter papers
Acid-treated for high wet-strength and chemical resistance
Nominal particle retention of 2.7 µm
Slow flow rates (Herzberg filtration speed 2685 s)
High purity and low ash content (0.015% ash maximum)
Compatible with Hirsch or Büchner funnels
GE offers three grades of hardened low ash filters. All three are designed for use in Hirsch and Büchner funnel applications and can be customized for an exact fit.
Specification
Grade :Grade 50
Format :Circles
GE’s Whatman Grade 52 is a general-purpose filter paper for quantitative analysis in Büchner funnel and other vacuum filtrations. The acid-hardened surface and low ash content enable efficient precipitate recovery.
Manufactured from high-quality cotton linters and treated to remove trace metals
High wet-strength and chemical resistance
Nominal particle retention of 7 µm
Medium flow rate (Herzberg filtration speed 235 s)
High purity (0.015% ash maximum)
Compatible with Hirsch or Büchner funnel applications
GE Healthcare’s Life Sciences business offers three grades of hardened low ash filter paper. All three are designed for use in Hirsch and Büchner funnel applications and can be customized for an exact fit.
Büchner funnel vacuum filtration
The quality of analysis resulting from vacuum filtration using a Hirsch or Büchner funnel relies on using a high-quality filter that avoids introducing artifacts into measurement. GE’s Grade 52 hardened filter paper is acid-treated to prevent fiber shredding during vacuum filtration or precipitate collection.
Specification
Grade :Grade 52
Format :Circles
GE’s Whatman Grade 54 filter paper has high wet strength and a larger nominal particle retention rating than comparable Büchner filtration papers, enabling fast vacuum filtration of coarse precipitates. Acid-treated for high wet-strength and chemical resistance
Large nominal particle retention rating of 22 µm
Fast filtration speed (Herzberg filtration speed 39 s)
High purity (0.015% ash maximum)
Compatible with Büchner funnel or Hirsch funnel applications
GE Healthcare’s Life Sciences business offers three grades of low ash hardened filter paper for quantitative analysis. All three are designed for use in gravity and vacuum/suction filtration in Büchner and Hirsch funnel applications and can be customized for an exact fit.
Specification
Grade :Grade 54
Format :Circles
Additional Information:
- Production Capacity: 1000
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WHATMAN Qualitative Hardened Ashless Filter Paper
Product Price: Rs 1,000 / BoxGet Best Price
Minimum Order Quantity: 1000 Box
Product Details:
| Usage/Application | Liquid Filteration |
| Brand | Whatman |
| Material | Fibre |
| Model Name/Number | Grade 541 |
| Shape | Rectangular |
| Automation Type | Semi-Automatic |
| Color | White |
Whatman Quantitative Filter Papers, Hardened Ashless, Grade 540
GE’s Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples.
Acid-treated for high wet-strength
Extremely low ash content (0.006% ash maximum)
Nominal particle retention of 8 µm
Medium flow rate (Herzberg filtration speed 200 s)
High chemical resistance to strong acid and alkali suspensions
GE Healthcare’s Life Sciences business offers hardened ashless filter paper for a variety of precipitate sizes. Along with general filtration Grade 540, the range includes Grade 542 for retention of fine precipitates and Grade 541 for fast filtration. All three grades are designed for use in gravimetric analysis.
Gravimetric analysis of acid and alkali suspensions
GE’s hardened, ashless Grade 540 lab filter paper is frequently used as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. The acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.
Specification
Grade :Grade 540
Format :Circle
GE’s Whatman Grade 541 acid hardened cellulose filter paper features high wet-strength, high chemical resistance, and a large nominal particle retention for fast analytical filtration.
High wet-strength
High chemical resistance to strong acid and alkali suspensions
Retention of gelatinous precipitate
22 µm nominal particle retention rating
Fast flow rate (Herzberg filtration speed 34 s)
Maximum of 0.006% ash concentration
Along with fast Grade 541 filter paper, the hardened, ashless range from GE Healthcare’s Life Sciences business includes general-purpose Grade 540 and Grade 542 for fine particle retention. All three paper grades are appropriate for use in gravimetric analysis with strong acids and alkali samples.
Gelatinous precipitate retention
Hardened ashless filter paper is recommended when fast filtration of a gelatinous precipitate for gravimetric analysis is performed on a strongly acidic or alkali solution. Applications of Grade 541 papers include:
Use as an animal foodstuff filter for determining fiber content
Determination of gelatin content in milk and cream
Quantification of chloride in cement, as well as chloride and phosphorous in coal and coke
Specification
Grade :Grade 541
Format :Sheet
GE’s Whatman Grade 542 filters are acid hardened to allow high retention of fine precipitates in applications such as metal determinations and hydroxide collection.
High wet-strength
Acid-hardened for resistance to strong acid and alkali solutions
Nominal particle retention rating of 2.7 µm
Herzberg filtration speed of 2510 s
Extremely low ash content (0.006% ash maximum)
Slow flow rate filters for gravimetric determination
Hardened Grade 542 quantitative papers enable high retention of fine particles in chemically harsh conditions. When acting as a gravimetric filter, this cellulose filter paper is therefore well suited for use in capturing fine precipitates in applications such as metal determinations and hydroxide collection.
Specification
Grade :Grade 542
Format :Circles
Additional Information:
- Item Code: 541
- Production Capacity: 100
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WHATMAN Glass Quartz Microfiber Filter
Product Price: Rs 800 / BoxGet Best Price
Minimum Order Quantity: 1000 Box
Product Details:
| Usage/Application | LIQUID FILTRATION |
| Brand | WHATMAN |
| Material | FIBRE |
| Shape | Square |
| Automation Type | Semi-Automatic |
| Color | WHITE |
Whatman Multigrade 150 Glass Fiber Filter
GE’s Whatman GMF 150 prefilters are multilayer graded density filters for rapid and efficient filtration of samples with high solids content.
Compared to an unprotected membrane, greater sample volume can be filtered
Higher particulate loading capacity and faster flow rates than uniform prefilters
Excellent particle retention (both large and small particles)
100% borosilicate glass, binder-free
Extends life of final filter membrane
Multilayer filter design
When a sample is applied, the multigrade glass filter traps larger particles in its pores or on the surface of the coarse layer, medium-sized particles in the interface meshing, and smaller particles in the interstices of the fine layer.
Specification
Parameter :Glass Microfiber Prefilter, 1 µm particle retention rating, 90 mm circles (20 pcs)
Diameter :90 mm
GE’s Whatman Grade GF/A glass microfiber filters feature fine retention. GF/A filters are suitable for water quality parameter measurement and air filtration applications.
Suitable for a wide range of liquid and air filtration applications
Nominal particle retention of 1.6 µm
GE’s Whatman brand Grade GF/B is a thick filter with fine particle filter and good loading capacity. GF/B filters are particularly useful for liquid clarification and liquid scintillation counting.
GF/B fine particle filter benefits
Liquid scintillation counting requires a fine particle filter, preferably with a high loading capacity.
Specification
Parameter :Grade GF/B Filter for Liquid Scintillation, 460 x 570 mm sheet (5 pcs)
Application :Used in LSC techniques where high loading capacity is required.
GE’s Whatman TCLP test filters are acid-treated with low metal content. They support TCLP testing by providing accurate information about TCLP limits to ensure the best possible disposal plan can be put into action.
Whatman TCLP test filters
TCLP-compliant test filters from GE come in six filter sizes for accurate landfill leachate modeling and sample analysis:
47 mm
90 mm
110 mm
125 mm
142 mm
150 mm
Specification
Parameter :TCLP Limits Test Filter, 90 mm circle (50 pcs)
Application :Required for volatile samples and use with a zero headspace extractor.
GE’s Whatman EPM 2000 air filters are used in high-volume PM-10 sampling equipment. Manufactured from 100% pure borosilicate glass, they enable detailed chemical analysis of trace pollutants with minimal interference.
Whatman EPM 2000 PM-10 air sampler filter sizes
EPM 2000 from GE Healthcare’s Life Sciences business is available as 100-piece packs of either 47 mm filter paper circles or 8 × 10 inch sheets.
Specification
Parameter :EPM 2000 Air Sampling Filters, 8 × 10 in sheet (100 pcs)
Application :For use in US EPA TSP ambient air monitoring. For use in high volume air sampling equipment that collects atmospheric particulates and aerosols.
Additional Information:
- Item Code: 2000
- Production Capacity: 100
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WHATMAN Track-Etched Membranes
Product Price: Rs 100 / BoxGet Best Price
Minimum Order Quantity: 1000 Box
Product Details:
| Filter Medium Material | Activated Carbon |
| Material | FIBER |
| Diameter | 3-4 inch |
| Usage/Application | Water Filter |
| Pore Size | 5-10 micron |
| Length | 10-15 inch |
Whatman Nuclepore Polycarbonate Membranes ‒ Black
GE’s Nuclepore black membrane filters are polycarbonate track-etched (PCTE) membranes with high particle visibility for standard plate count and epifluorescence microscopy applications.
Smooth, gridded PCTE membrane surface efficiently supports microorganism enumeration in a standard plate count
Irgalan black membranes for reduced background fluorescence in support of epifluorescence microscopy
Extremely low nonspecific absorption
Explore the full range of Whatman Nuclepore polycarbonate membrane filters from GE Healthcare’s Life Sciences business for hydrophilic, hydrophobic, black, and gold-coated membranes
Black membranes for rapid standard plate count results
GE’s Nuclepore membrane filters are compatible with the direct epifluorescent microscopy filter technique (DEFT), which allows microorganisms to be counted directly on a filter. DEFT can be conducted in under half an hour, sidestepping the standard > 24 hour process of incubating a microbial sample.
GE’s irgalan black membranes greatly reduce background fluorescence, improving visibility and helping to distinguish microorganisms from other particulates.
Specification
Parameter :Nuclepore Polycarbonate Black Membrane Filter, circle, 0.8 µm pore size, 25 mm (100 pcs)
Application :Potable water Ultra pure water Food and dairy Wine and beverages Clinical Electronics
Color :Black
GE’s Whatman Cyclopore polycarbonate membranes are true pore size microporous membranes featuring the sharp cut-off and reproducible microfiltration characteristics of track-etched membranes.
Low affinity for stains improves visibility under a microscope
Low nonspecific protein binding minimizes sample loss of proteinaceous samples
Narrow micropore size distribution and high pore density support rapid surface capture of analyte
Negligible absorption and adsorption of filtrate; nonhygroscopic
No particle shedding enables clean filtrate
Biologically inert
Whatman Cyclopore track-etched membrane filter circles are suitable for a wide variety of applications, from general filtration, including cross-flow filtration (tangential flow filtration), to air and water monitoring, microorganism analysis, and many healthcare applications, including immunodiagnostics.
GE Healthcare’s Life Sciences business offers a variety of Whatman track-etched membranes. Cyclopore comes in clear and black colors.
SpecificationParameter :Cyclopore Polycarbonate Membrane, 8.0 µm pore size, 47 mm circle (100 pcs)
Ash Weight :0.6 µg/cm²
Autoclavable :30 min at 121°C
Nuclepore Track-Etched Polycarbonate (Hydrophobic) PVP-Free Membranes
Low protein binding and low extractables ensuring no sample contamination.
High chemical resistance and good thermal stability for a wide range of samples.
Low, consistent ash and low tare weights.
Smooth flat surface for good visibility of particles.
Specification
Parameter :PVP-Free Nuclepore Hydrophobic Membrane, 8.0 µm pore size, 13 mm circle (100 pcs)
Application :Epifluorescence microscopy Environmental analysis Cell biology EPA testing Fuel testing Bioassays Parasitology Air analysis Water microbiology
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