Whatman Grade 588 Qualitative Filter Papers

Whatman Grade 588 Qualitative Filter Papers Fast filter paper. Stated in a number of standards and methods [e.g., Aflatoxin determination in animal feed (BS 5766-7) and Mercury determination in sludge (EPA method 105)]. Savings in time required to quadrant-fold circles to fit conical filter funnels in repetitive or multiple analyses. Decreased overall filtration time because of the extra surface area exposed; the normal slow down of filtration speed due to the loading of particulate is postponed. Increased total loading capacity as more filter area is available. Maintained flow rate due to the reduction in filter paper contact wit ...

Whatman Grade 598 Qualitative Filter Papers

Whatman Grade 598 Qualitative Filter Papers A thick filter paper with high loading capacity. Combines medium retention with medium-fast to fast filtration speed. 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. PRODUCT PRODUCT NAME FORMAT 10312000 Grade 598 Qualitative Filter Paper, roll, 500 × 100 mm Roll 10312209 Grade 598 Qualitative Filter Paper, circle, 90 mm Circles 10312287 Grade 598 Qualitative Filter Paper Standard Grade, sheet, 580 × 580 mm Sheets ...

Whatman Grade 6 Qualitative Filter Papers

Whatman Grade 6 Qualitative Filter Papers A standard grade filter for boiler water 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. PRODUCT PRODUCT NAME DIAMETER 1006-042 Grade 6 Qualitative Filter Paper Standard Grade, circle, 42.5 mm 42.5 mm 1006-070 Grade 6 Qualitative Filter Paper Standard Grade, circle, 70 mm 70 mm 1006-090 Grade 6 Qualitative Filter Paper Standard Grade, circle, 90 mm 90 mm 1006-110 Grade 6 Qualitative Filter Paper Standard Grade, circle, 110 mm 110 mm 1006-125 G ...

Whatman Grade 602 h Qualitative Filter Papers

Whatman Grade 602 h Qualitative Filter Papers A standard grade filter esed in sample preparation, e.g., in the beverage industry for residual sugar determination, acidic spectra, refractometric analysis, and HPLC. 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. PRODUCT PRODUCT NAME DIAMETER 10312611 Grade 602 h Qualitative Filter Paper Standard Grade, circle, 125 mm 125 mm 10312612 Grade 602 h Qualitative Filter Paper Standard Grade, circle, 150 mm 150 mm 10312614 Grade 602 ...

Whatman Grade 602EH Qualitative Filter Papers

Whatman Grade 602EH Qualitative Filter Papers 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. Parameter 602eh 10 mmx50 m 20/Pk Grade Grade 602eh  Grade Type Standard  Dimensions 10 mm x 50 m  Particle Retention in Liquid Max. 2 µm ...

Whatman Quantitative Filter Papers, Ashless, Grade 589/3

Whatman Quantitative Filter Papers, Ashless, Grade 589/3 Whatman Grade 589/3 ashless filter paper from GE is particularly useful in capturing very fine particulate samples such as insoluble molecules in fats or oils or supporting ash free dry mass. High purity (< 0.01% ash) for ash free dry mass methods ‘Blue ribbon filter’ Very fine precipitate retention (class 2d acc. to DIN 53 135) Herzberg filtration speed of 750 s* Also available prepleated as Grade 589/3 ½ *The time taken to filter 100 ml water (20°C) through a filter area of 10 cm²  at a constant pressure of 5 cm water column ...

Whatman Quantitative Filter Papers, Ashless, Grade 40

Whatman Quantitative Filter Papers, Ashless, Grade 40 Whatman Grade 40 high-purity filters from GE Healthcare’s Life Sciences business are general-purpose papers for quantitative analysis. Grade 40 filters are suitable for a variety of analytical filtration applications. High-purity filters contain 0.007% maximum ash content Medium nominal particle retention rating of 8 µm Medium filtration speed (Herzberg 340 s) Particularly useful for gravimetric analysis PRODUCT PRODUCT NAME DIMENSIONS 1440-012 Grade 40 Ashless Filter Paper for Pollution Analysis, 12.7 mm circle (400 pcs) Ø 12.7 mm 1440-032 Grade 40 Ashless Filter Paper for Pollution Analysis, 32 mm circle (100 pcs) Ø 32 mm 1 ...

Whatman Quantitative Filter Papers, Ashless, Grade 41

Whatman Quantitative Filter Papers, Ashless, Grade 41 GE’s Whatman Grade 41 environmental pollution papers are among the fastest filter papers in the Whatman ashless range. This gravimetric filter is well suited for quantitative analysis of soil and air. Extremely low ash content (0.007% ash maximum) 20 µm nominal particle retention rating Fast filtration speed (Herzberg 54 s) Commonly used for routine air pollution analysis and soil pollution analysis PRODUCT PRODUCT NAME DIMENSIONS 1441-042 Grade 41 Fast Ashless Filter Paper, 42.5 mm circle (100 pcs) Ø 42.5 mm 1441-047 Grade 41 Fast Ashless Filter Paper, 47 mm ...

Whatman Quantitative Filter Papers, Ashless, Grade 42

Whatman Quantitative Filter Papers, Ashless, Grade 42 Our high-purity Whatman ashless Grade 42 quantitative filter papers are suitable for a wide range of critical analytical filtration procedures for quantitative analysis. Grade 42 filter papers have the finest retention of all Whatman ashless filter paper grades. Grade 42 is designed for gravimetric analysis and sample preparation for instrumental analysis. Ashless: 0.007% ash maximum Fine (2.5 μm) nominal particle retention rating, eliminates large particles that might otherwise interfere with sensitive instrumentation Herzberg filtration speed of 1870 s Commonly used as a calcium carbonate filter Particularly suitable for gravimetric analysis ...

Whatman Quantitative Filter Papers, Ashless, Grade 43

Whatman Quantitative Filter Papers, Ashless, Grade 43 GE’s Whatman Grade 43 filters support inorganic analysis and other forms of instrumental analyses. The low ash content also makes Grade 43 appropriate for gravimetric analyses requiring sample combustion. Very low ash content (0.007% ash concentration maximum) Intermediate particle retention rating of 16 µm Herzberg filtration speed of 155 s Particle collection between that of Grades 40 and 41 PRODUCT PRODUCT NAME DIAMETER 1443-090 Grade 43 Ashless Filter Paper for Inorganic Analysis, 90 mm circle (100 pcs) 90 mm 1443-110 Grade 43 Ashless Filter Paper for Inorganic Analysis, 110 mm circle (100 pcs) 110 mm ...