Filter Paper

Grade 597½ Prepleated Cellulose Qualitative Filter Paper^New
COMPANY : WHATMAN ENGLAND

→ Diameter: 185mm
→ Filtration speed: 70 herzberg; typical thickness: 180µm; basis weight: 85g/m²
→ Retention: 4 – 7µm
→ Medium fast pleated 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 acc. to § 35 LMBG) or removal of carbon dioxide and turbidity from beverages

Quartz Fiber Filter Papers
COMPANY: WHATMAN ENGLAND

→ Diameter: 4.7cm
→ High purity quartz (SiO2) microfiber filter is are used for air sampling in acidic gases – stacks – flues and aerosols
→ Particularly at high temperatures up to 500°C and in PM-10 testing
→ Because of the low level of alkaline earth metals – ‘artifact’ products of sulfates and nitrates (from SO2 and NO2) are virtually eliminated
→ QM-A – sequentially numbered according to EPA standards – is suitable for most applicationsPack of 100

Filteration Funnel^New
COMPANY : WHATMAN ENGLAND

→ Reusable filter funnel is quickly dismantled ready for the insertion of a new filter
→ Filter Funnel Plate: Acrylic; Diameter: 7.0cm; Funnel Reservoir Capacity: 115mL
→ Edge clamping prevents peripheral loss and possible passage of solution around, rather than through, the filter circle
→ Acrylic filter funnel plate is suitable for filtration of most aqueous solutions with a maximum working temperature of 65°C
→ Polypropylene and PTFE interchangeable filter funnel plates are available separately

CELLULOSE SEED TESTING PAPER
COMPANY : WHATMAN ENGLAND

ISTA Test Method: TP (Top of Paper)Test
Paper Size: 110 x 70mmPaper
Color: YellowSeed Germination
Paper Type: BlotterPaper
Thickness: 0.35mm, Paper Weight: 165(g/m2)

Grade 2V Prepleated Qualitative Filter Paper
COMPANY : WHATMAN ENGLAND

→ 32.0cm Diameter, Pore Size: 8µm
→ Whatman™ Grade 2V Qualitative Filter Paper, Pre-Folded
→ Excellent particle retention; good filtration speed and loading capacity
→ Major advantage over flat circles; no time spent quadrant-folding circles to fit conical filter funnels in repetitive or multiple analysis
→ Extra surface area results in decreased overall filtration time; increased total loading capacity because more filter area is available

FILTER PAPERS STANDARD QUALITATIVE, GRADE 1
COMPANY : WHATMAN, ENGLAND

Qualitative Filters : These filters are used in qualitative analytical techniques to determine and identify materials. Folded qualitative filter are also available which give improved flow rate and increased loading capacity compared to equivalent flat filters.

Grade 1 : A medium retention and flow rate filter for routine applications including soil analysis and seed testing procedures, food industry testing, air pollution monitoring and gas detection.

FILTER PAPERS STANDARD QUALITATIVE, GRADE 2
COMPANY : WHATMAN, ENGLAND

Qualitative Filters : These filters are used in qualitative analytical techniques to determine and identify materials. Folded qualitative filter are also available which give improved flow rate and increased loading capacity compared to equivalent flat filters.

Grade 2 : More absorbent and slightly more retentive with a slower filtration speed than Grade 1. Used for monitoring specific contaminants in the atmosphere and in soil testing.

FILTER PAPERS STANDARD QUALITATIVE, GRADE 3
COMPANY : WHATMAN, ENGLAND

Qualitative Filters : These filters are used in qualitative analytical techniques to determine and identify materials. Folded qualitative filter are also available which give improved flow rate and increased loading capacity compared to equivalent flat filters.

Grade 3 : A thick filter with good loading capacity, fine particle retention and increased strength. The extra thickness gives increased wet strength and makes the filters suitable for use in Buchner funnels.

FILTER PAPERS STANDARD QUALITATIVE, GRADE 4
COMPANY : WHATMAN, ENGLAND

Qualitative Filters : These filters are used in qualitative analytical techniques to determine and identify materials. Folded qualitative filter are also available which give improved flow rate and increased loading capacity compared to equivalent flat filters.

Grade 4 : Offers high flow rate with good retention of large particles and gelatinous precipitates such as ferric hydroxide and aluminium hydroxide.

FILTER PAPERS STANDARD QUALITATIVE, GRADE 5
COMPANY : WHATMAN, ENGLAND

Qualitative Filters : These filters are used in qualitative analytical techniques to determine and identify materials. Folded qualitative filter are also available which give improved flow rate and increased loading capacity compared to equivalent flat filters.

Grade 5 : The most efficient qualitative filter. Used for collecting small particles and has a slow flow rate. Suitable for chemical analysis, clarity cloudy suspensions and for water and soil analysis.

FILTER PAPERS, GRADE 40
COMPANY : WHATMAN, ENGLAND

Ashless Filters : Ashless filters are produced from high quality cotton linters under carefully controlled conditions. These very pure filters are ideal for a wide range of critical analytical filtration procedures.

Grade 40 : General-purpose ashless filter with medium speed and particle retention. Application include gravimetric analysis, the filtration of solution prior to atomic absorption spectrophotometry and in air pollution monitoring.

FILTER PAPERS, GRADE 41
COMPANY : WHATMAN, ENGLAND

Ashless Filters : Ashless filters are produced from high quality cotton linters under carefully controlled conditions. These very pure filters are ideal for a wide range of critical analytical filtration procedures.

Grade 41 : The fastest ashless filter is recommended for analytical procedures involving large particles or gelatinous precipitates such as iron or aluminium hydroxides. Also used in quantitative air pollution analysis for determining gaseous compounds at high flow rates.

FILTER PAPERS, GRADE 42
COMPANY : WHATMAN, ENGLAND

Ashless Filters : Ashless filters are produced from high quality cotton linters under carefully controlled conditions. These very pure filters are ideal for a wide range of critical analytical filtration procedures.

Grade 42 : A moderately fast filter with the finest particle retention of all Whatman cellulose filters. Typical analytical precipitates include barium sulphate, metastannic acid and finely precipitates calcium carbonate.

FILTER PAPERS, GRADE 43
COMPANY : WHATMAN, England.

FILTER PAPERS, GRADE 44
COMPANY : WHATMAN, England.

Ashless Filters : Ashless filters are produced from high quality cotton linters under carefully controlled conditions. These very pure filters are ideal for a wide range of critical analytical filtration procedures.

FILTER PAPERS, GRADE 50
COMPANY : WHATMAN, England.

Grade 50 : The thinnest filter with a slow flow rate and good particle retention characteristics. The hardened surface is virtually free from loose fibers.

FILTER PAPERS/GRADE 113/GRADE 113V
COMPANY : WHATMAN, England.

Grade 113 : A creped filter with high loading capacity and the fastest flow rate of any qualitative grade. This is the thickest filter in the range and is extremely strong. Grade 113 is ideal for use with coarse or gelatinous precipitates. It is available folded as Grade 113V.

FILTER PAPERS, GRADE 540
COMPANY : WHATMAN, England.

Ashless Filters : Ashless filters are produced from high quality cotton linters under carefully controlled conditions. These very pure filters are ideal for a wide range of critical analytical filtration procedures.

Grade 540 : A general purpose filter with medium retention and flow rate. Frequently used in the gravimetric analysis of metal in acid/alkali solution.

FILTER PAPERS, GRADE 541
COMPANY : WHATMAN, England.

Ashless Filters : Ashless filters are produced from high quality cotton linters under carefully controlled conditions. These very pure filters are ideal for a wide range of critical analytical filtration procedures.

Grade 541 : Offers high filtration speed for the retention of large particles and gelatinous precipitates in acid or alkaline solution. Typical application include protein determination, cemet analysis and the determination of fiber in animal foodstuff.

FILTER PAPERS, GRADE 542
COMPANY : WHATMAN, England.

Ashless Filters : Ashless filters are produced from high quality cotton linters under carefully controlled conditions. These very pure filters are ideal for a wide range of critical analytical filtration procedures.

Grade 542 : 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 determination.

GLASS MICROFIBER FILTER
COMPANY : WHATMAN, ENGLAND.

Glass glass microfiber are manufactured from 100% borosilicate glass and are chemically inherit and completely binder free. These depth filters combine fast flow rates with high loading capacity and the retention of very fine particles, extending into the sub-micro range.

GF/C : Regularly specified in standard methods for determining suspended solids in water, removal of turbidity and filtration of bacterial cultures.

GF/F : Very high retention for filtering fine particles.

PM 2.5 Air Monitoring Membrane Filters
COMPANY : WHATMAN GERMANY

→ Diameter: 4.62cm; PTFE filters are manufactured and certified to be within conformance of EPA PM 2.5 Reference Method
→ Whatman™ PM 2.5 PTFE membrane filter is a high-purity, thin PTFE membrane centered within a sequentially-numbered and chemically-resistant polypropylene support
→ ring for PM 2.5 ambient air monitoring
→ Thermally stable design of the membrane eliminates curling, keeps the membrane flat which makes them automation & robot-friendly
→ Chemically resistant with low chemical background filters permit sensitive, interference-free determinations
→ PM 2.5 PTFE membranes are manufactured under clean room conditions

Teflon / Nylon / Cellulose MEMBRANE FILTER
COMPANY : WHATMAN, England.

FILTER PAPER RA
COMPANY : WHATMAN, ENGLAND

Chromatography Paper
COMPANY : Whatman, England.

Paper chromatography is an extremely efficient & economical method of separating the different compounds of soluble sample.

It provides several key benefits.
– Simultaneous development of multiple samples on the sheet under identical conditions.
– Sequential development of the same samples with different solvents and/or different concentration of same solvents.
– Suitability for two-dimensional chromatography with possible improved resolution.

SOM CODE : 1610/1
MODEL : 2200-110
COMPANY : WHATMAN UK

1PS PHASE SEPARATOR PAPER ( FILTER CIRCLE) AUTOMATIC CUT-OFF 110MM 100/PK, IN PK

The Whatman 1PS Phase Separator is a high-grade filter paper impregnated with a stabilized silicone that renders it hydrophobic, retaining the aqueous phase and passing the solvent phase through.

Features and Benefits:
→ Ease of use – no special training required
→ Any number of separations can be processed together
→ Staff involvement in routine separations is at a minimum

SOM CODE : 1600/127
MODEL : 10402480
COMPANY : WHATMAN, England.

BA83 Protran, 0.2 µm, blotting membrane, 33 x 56 cm, sheet, 5/pk

SOM CODE : 1626/5
MODEL : 6809-7013
COMPANY : WHATMAN GERMANY

ANODISC CIRCLE MEMBRANE WITHOUT SUPPORT RING 13 MM 0.1 uM PORE SIZE 100/PK

→ 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
→ Extremely low protein binding minimizes sample loss
→ Virtually transparent when wet making it ideal for microscopy studies

SOM CODE : D545/65
MODEL : 28150-371
COMPANY : VWR ,U.S.A

FILTER 4 MM CA 0.45 100/PK

This depth-type filter medium is useful for prolonging membrane filter life in liquid systems that contain substantial amounts of particulate matter. Made of finer glass fiber than standard prefilters, with 5% acrylic binder. Liquid nominal rating: 0.5µm.

Porosity: Fine
Flow Rate: Medium
Particle Retention: 0.5 µm

Note : Please mention the product “SOM CODE” while making request for quotation and send it to *****@somatco.com