{"title":"Other Qualitative Papers","description":"\u003cp\u003eOther Qualitative Papers\u003c\/p\u003e","products":[{"product_id":"qualitative-filter-paper-grade-610-4-25-cm-100-pk-ahlstrom-6100-0425","title":"Qualitative Filter Paper, Grade 610, 4.25 cm, 100\/PK, Ahlstrom, 6100-0425","description":"\u003cp\u003e\u003cstrong\u003eAhlstrom® Qualitative Filter Paper, Grade 610, 4.25 cm, 100\/PK, 6100-0425\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGrade 610 is a slow flowing filter designed to retain fine particles encountered in qualitative analysis\u003c\/li\u003e\n\u003cli\u003eWidely used for water analysis, biological products and fine precipitates such as cold-precipitated barium sulfate\u003c\/li\u003e\n\u003cli\u003eAlso used in Buchner funnels and to clarify cloudy suspensions\u003c\/li\u003e\n\u003cli\u003eNon wet-strengthened\u003c\/li\u003e\n\u003cli\u003eLow ash\u003c\/li\u003e\n\u003cli\u003eEquivalent to Cytiva® Whatman® Grade 5\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ahlstrom","offers":[{"title":"PK (1)","offer_id":51110618104123,"sku":"12-4553-10-PK","price":12.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/12-4553-10.png?v=1785302368"},{"product_id":"filter-paper-10-cm-diameter-representative-image","title":"Filter Paper, 10 cm Diameter [REPRESENTATIVE IMAGE]","description":"\u003cp\u003eThank you for visiting our website.  We offer more than 100,000 products.  If you do not see what you are looking for or need more information on a product, contact our knowledgeable sales team at preiser@preiser.com or call (800) 624-8285. We are constantly adding more products and updated information about the products on the website.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"Cytiva","offers":[{"title":"BX (1)","offer_id":51110618202427,"sku":"12-4580-28-BX","price":4.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/12-4580-28.png?v=1785302370"},{"product_id":"filter-paper-qualitative-grade-617-fast-9-cm-diameter-50-pk-ahlstrom-6170-0900","title":"Filter Paper, Qualitative, Grade 617, Fast, 9 cm Diameter, 50\/PK, Ahlstrom, 6170-0900","description":"\u003cp\u003e\u003cstrong\u003eAhlstrom® Qualitative Filter Paper, Grade 617, 9 cm, 35 micron, 50\/PK, 6170-0900\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExtremely fast filtering grade and has larger particle retention than Grade 631\u003c\/li\u003e\n\u003cli\u003eThicker filter paper with higher loading capacity, used for rapid filtration of coarse particles and gelatinous precipitates such as in oils and resin solutions\u003c\/li\u003e\n\u003cli\u003eAlso found in construction product testing and is used by students to retain large flocculents and precipitates\u003c\/li\u003e\n\u003cli\u003eNon wet-strengthened\u003c\/li\u003e\n\u003cli\u003eSuitable for quadrant folded or gravity flow applications\u003c\/li\u003e\n\u003cli\u003eNo Whatman® equivalent\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ahlstrom","offers":[{"title":"PK (1)","offer_id":51110618235195,"sku":"12-4581-03-PK","price":9.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/12-4581-03_2776dc58-edd2-464e-a768-6a93e077fac2.png?v=1785302373"},{"product_id":"grade-617-qualitative-filter-paper-fast-25-cm-50-pk-ahlstrom-6170-2500-833594","title":"Grade 617 Qualitative Filter Paper, Fast, 25 cm, 50\/PK, Ahlstrom, 6170-2500, 833594","description":"\u003cp\u003e\u003cstrong\u003eAhlstrom® Grade 617 Qualitative Filter Paper, Fast, 25 cm, 50\/PK, 6170-2500, 833594\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eThis is an extremely fast filtering grade and has a larger particle retention than Grade 631\u003c\/li\u003e \u003cli\u003eGrade 617, a thicker filter paper with higher loading capacity, is used for rapid filtration of coarse particles and gelatinous precipitates such as in oils and resin solutions\u003c\/li\u003e \u003cli\u003eGrade 617 is also found in construction product testing and is used by students to retain large flocculents and precipitate\u003c\/li\u003e \u003cli\u003eMade from 60% cotton and 40% wood fibers\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e \u003ctable style=\"width:\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003eParticle Retention\u003c\/td\u003e \u003ctd\u003e35 µm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFiltration Speed, Herzberg\u003c\/td\u003e \u003ctd\u003e19 seconds\/100 mL\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFiltration Speed, Rapidity\u003c\/td\u003e \u003ctd\u003e360 mL\/minute\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eCapacity\u003c\/td\u003e \u003ctd\u003eVery high\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eWeight\u003c\/td\u003e \u003ctd\u003e123 g\/m\u003csup\u003e2\u003c\/sup\u003e\n\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eThickness\u003c\/td\u003e \u003ctd\u003e0.51 mm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFlow Rate\u003c\/td\u003e \u003ctd\u003eFast\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e","brand":"Ahlstrom","offers":[{"title":"PK (1)","offer_id":51110618267963,"sku":"12-4581-09-PK","price":31.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/12-4581-09.png?v=1785302376"},{"product_id":"qualitative-filter-paper-grade-617-4-25-cm-35-micron-50-pk-ahlstrom-6170-0425","title":"Qualitative Filter Paper, Grade 617, 4.25 cm, 35 micron, 50\/PK, Ahlstrom, 6170-0425","description":"\u003cp\u003e\u003cstrong\u003eAhlstrom-Munksjo® Qualitative Filter Paper, Grade 617, 4.25 cm, 35 micron, 50\/PK, 6170-0425\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003ean extremely fast filtering grade and has larger particle retention than Grade 631\u003c\/li\u003e \u003cli\u003eThicker filter paper with higher loading capacity, used for rapid filtration of coarse particles and gelatinous precipitates such as in oils and resin solutions\u003c\/li\u003e \u003cli\u003eAlso found in construction product testing and is used by students to retain large flocculents and precipitates\u003c\/li\u003e \u003cli\u003eNon wet-strengthened\u003c\/li\u003e \u003cli\u003eSuitable for quadrant folded or gravity flow applications\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e \u003ctable style=\"width:\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003eClass\u003c\/td\u003e \u003ctd\u003eQualitative\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eSpeed\u003c\/td\u003e \u003ctd\u003eFast\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eGrade\u003c\/td\u003e \u003ctd\u003e617\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eSize\u003c\/td\u003e \u003ctd\u003e4.25 cm diameter\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eRetention\u003c\/td\u003e \u003ctd\u003e35 µm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFiltration Speed Herzberg\u003c\/td\u003e \u003ctd\u003e19 seconds\/100 mL\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFiltration Speed Rapidity\u003c\/td\u003e \u003ctd\u003e360 mL\/minute\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eLoading Capacity\u003c\/td\u003e \u003ctd\u003eVery High\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eEquivilent Grade\u003c\/td\u003e \u003ctd\u003eN\/A\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eMaterial\u003c\/td\u003e \u003ctd\u003e\u0026gt; 95% super refined α-cellulose and linter fibers\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e","brand":"Ahlstrom","offers":[{"title":"PK (1)","offer_id":51110618333499,"sku":"12-4581-15-PK","price":7.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/12-4581-15.png?v=1785302379"},{"product_id":"filter-paper-reeve-angel-very-fast-crepe-surface-grade-230-50-cm-diameter","title":"Filter Paper, Reeve Angel, Very Fast, Crepe Surface, Grade 230, 50 cm Diameter","description":"\u003cp id=\"overview\" class=\"lead-paragraph\"\u003eCytiva Whatman  general qualitative filter with creped surface. High filtration speed and high loading capacity. Widely used in industrial laboratories and students laboratories for routine filtration.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRetains coarse particles\u003c\/li\u003e\n\u003cli\u003eHigh speed and loading capacity\u003c\/li\u003e\n\u003cli\u003eStrong, thick filter with crêped surface\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"rte-wrapper\"\u003e\n\u003cp\u003eThe filter is wet-strengthened with a small amount of chemically stable resin to extend the life of the filter and improve handling. Normal qualitative applications will not introduce any significant impurities into the filtrate. However it is not recommended for Kjeldahl nitrogen analysis.\u003c\/p\u003e\n\u003cdiv class=\"read-more-expandable\"\u003e\n\u003cp\u003eReeve Angel products are designed for routine, repetitive applications for which an inexpensive product is acceptable, such as qualitative analysis. Reeve Angel products deliver as promised, every time.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cytiva","offers":[{"title":"EA (1)","offer_id":51110619382075,"sku":"12-5289-83-EA","price":268.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/12-5289-83.png?v=1785302404"},{"product_id":"filter-paper-10-in-diameter-for-8-in-sepor-bench-pressure-filter-100-pk-sepor-070b-012","title":"Filter Paper, 10 in. Diameter for 8 in. Sepor Bench Pressure Filter, 100 \/PK, Sepor, 070B-012","description":"\u003cp\u003e\u003cstrong\u003eSepor® Filter Paper, 10 in. Diameter for 8 in. Sepor® Bench Pressure Filter, 100\/PK, 070B-012\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh wet strength filter papers\u003c\/li\u003e\n\u003cli\u003e25 micron pore opening\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Others","offers":[{"title":"PK (1)","offer_id":51110932840763,"sku":"90-7405-27-PK","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7405-27_5775cb71-e6f4-4e24-bf66-04bb3e707420.png?v=1784704902"},{"product_id":"no-232-grade-medium-medium-fine-qualitative-filter-paper-11-0-cm-100-pk-advantec-mfs-inc-n023211-0cm","title":"No.232 Grade Medium\/Medium Fine Qualitative Filter Paper 11.0 cm 100\/Pk, Advantec Mfs, Inc, N023211.0CM","description":"\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eAdvantec MFS™ No. 232 Grade Medium\/Medium Fine Qualitative Filter Paper, 11.0 cm diameter, 100\/Pk, N023211.0CM\u003c\/span\u003e\u003cspan style=\"font-size:\" small\u003eQualitative Filter Paper Features:\u003c\/span\u003e\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size:\" small\u003e100% alpha cotton cellulose\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size:\" small\u003epH tolerant 0 to 12\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size:\" small\u003eTemperature maximum 120 °C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size:\" small\u003eWide selection of types and sizes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size:\" small\u003eAsh content 0.1%\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cspan style=\"font-size:\" small\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size:\" small\u003eClarify and remove preciptates\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size:\" small\u003ePreparation of qualitative analysis\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cspan style=\"font-size:\" small\u003e\u003cstrong\u003eSpecifications and Approximate Equivalents:\u003c\/strong\u003e\u003c\/span\u003e\u003ctable style=\"border-color:\" solid frame=\"border\" rules=\"all\" border=\"1\" align=\"center\" border-width:=\"\" border-style:=\"\" width:=\"\" height:=\"\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eGrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eNo. 232\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eCharacteristics\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eRetains medium to medium-fine particulates, slow flow rate, smooth, normal hardness\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eDiameter, cm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003e11.0\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eWeight, g\/m²\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003e90\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eThickness, mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003e0.18\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eFlow Time, sec\u003cspan style=\"color:\"\u003e¹\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003e250\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\n\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eAbsorption \u003cspan style=\"font-size:\" small\u003e\u003cspan style=\"font-size:\" small\u003eSpeed, cm\u003cspan style=\"color:\"\u003e²\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"color:\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003e\u003cspan style=\"color:\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003e5.0\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003e\u003cspan style=\"font-size:\" small\u003e\u003cspan style=\"font-size:\" small\u003eWet Strength, cm H2O\u003cspan style=\"color:\"\u003e³\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eN\/A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eRetention Characteristic, µm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eMedium\/Medium-fine\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eCollection Efficiency, %, 0.3 µm DOP\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eN\/A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\" colspan=\"2\"\u003e\u003cspan style=\"color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eConversions\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eWhatman\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eN\/A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eSchleicher \u0026amp; Schuell\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eN\/A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cspan style=\"color:\"\u003e\u003cspan style=\"color:\"\u003e\u003cspan style=\"font-size:\" small\u003e¹\u003c\/span\u003e \u003cspan style=\"color:\"\u003eFlow time is the time in seconds required to filter 100 mL of distilled water at 20 °C under pressure supplied by a 10 cm water column through a 10 cm² section of filter paper\u003cspan style=\"color:\" font-size: small\u003e² \u003c\/span\u003eAbsorption speed is the distance in cm that water will travel in an upright strip of filter paper in ten (10) minutes at 20 \u003cspan style=\"color:\"\u003e\u003cspan style=\"color:\"\u003e°C\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"color:\" font-size: small\u003e³\u003c\/span\u003e Wet strength is the height in cm of a water column that will rupture a 10 cm² section of filter paper\u003cspan style=\"font-size:\" small\u003e\u003cstrong\u003eOther Sizes of No. 232 Grade Filter Paper Available:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003ctable frame=\"box\" rules=\"all\" style=\"border-color:\" border=\"1\" align=\"center\" border-width:=\"\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cspan style=\"font-size:\" small color:\u003eCat. No.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cspan style=\"font-size:\" small color:\u003eMfg. No.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cspan style=\"font-size:\" small color:\u003eDiameter, cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003e90-7468-11\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eNO23211.0CM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003e11.0\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003e90-7468-12\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eNO23212.5CM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003e12.5\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cspan style=\"color:\"\u003e\u003cspan style=\"color:\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e","brand":"Advantec MFS","offers":[{"title":"PK (1)","offer_id":51110943260987,"sku":"90-7468-11-PK","price":22.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7468-11.png?v=1784705105"},{"product_id":"no-232-grade-medium-medium-fine-qualitative-filter-paper-12-5-cm-100-pk-advantec-mfs-inc-n023212-5-cm","title":"No.232 Grade Medium\/Medium Fine Qualitative Filter Paper 12.5 cm 100\/Pk, Advantec MFS, Inc, N023212.5 cm","description":"\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eAdvantec MFS™ No. 232 Grade Medium\/Medium Fine Qualitative Filter Paper, 12.5 cm diameter, 100\/Pk, N023212.5CM\u003c\/span\u003e\u003cspan style=\"font-size:\" small\u003eQualitative Filter Paper Features:\u003c\/span\u003e\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size:\" small\u003e100% alpha cotton cellulose\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size:\" small\u003epH tolerant 0 to 12\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size:\" small\u003eTemperature maximum 120 °C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size:\" small\u003eWide selection of types and sizes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size:\" small\u003eAsh content 0.1%\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cspan style=\"font-size:\" small\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size:\" small\u003eClarify and remove preciptates\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size:\" small\u003ePreparation of qualitative analysis\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cspan style=\"font-size:\" small\u003e\u003cstrong\u003eSpecifications and Approximate Equivalents:\u003c\/strong\u003e\u003c\/span\u003e\u003ctable style=\"border-color:\" solid frame=\"border\" rules=\"all\" border=\"1\" align=\"center\" border-width:=\"\" border-style:=\"\" width:=\"\" height:=\"\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eGrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eNo. 232\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eCharacteristics\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eRetains medium to medium particulates, slow flow rate, smooth, normal hardness\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eDiameter, cm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003e12.5\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eWeight, g\/m²\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003e90\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eThickness, mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003e0.18\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eFlow Time, sec\u003cspan style=\"color:\"\u003e¹\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003e250\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\n\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eAbsorption \u003cspan style=\"font-size:\" small\u003e\u003cspan style=\"font-size:\" small\u003eSpeed, cm\u003cspan style=\"color:\"\u003e²\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"color:\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003e\u003cspan style=\"color:\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003e5.0\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003e\u003cspan style=\"font-size:\" small\u003e\u003cspan style=\"font-size:\" small\u003eWet Strength, cm H2O\u003cspan style=\"color:\"\u003e³\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eN\/A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eRetention Characteristic, µm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eMedium\/Medium Fine\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eCollection Efficiency, %, 0.3 µm DOP\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eN\/A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\" colspan=\"2\"\u003e\u003cspan style=\"color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eConversions\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eWhatman\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eN\/A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003eSchleicher \u0026amp; Schuell\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eN\/A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cspan style=\"color:\"\u003e\u003cspan style=\"color:\"\u003e\u003cspan style=\"font-size:\" small\u003e¹\u003c\/span\u003e \u003cspan style=\"color:\"\u003eFlow time is the time in seconds required to filter 100 mL of distilled water at 20 °C under pressure supplied by a 10 cm water column through a 10 cm² section of filter paper\u003cspan style=\"color:\" font-size: small\u003e² \u003c\/span\u003eAbsorption speed is the distance in cm that water will travel in an upright strip of filter paper in ten (10) minutes at 20 \u003cspan style=\"color:\"\u003e\u003cspan style=\"color:\"\u003e°C\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"color:\" font-size: small\u003e³\u003c\/span\u003e Wet strength is the height in cm of a water column that will rupture a 10 cm² section of filter paper\u003cspan style=\"font-size:\" small\u003e\u003cstrong\u003eOther Sizes of No. 232 Grade Filter Paper Available:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003ctable frame=\"box\" rules=\"all\" style=\"border-color:\" border=\"1\" align=\"center\" border-width:=\"\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cspan style=\"font-size:\" small color:\u003eCat. No.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cspan style=\"font-size:\" small color:\u003eMfg. No.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cspan style=\"font-size:\" small color:\u003eDiameter, cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003e90-7468-11\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eNO23211.0CM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003e11.0\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color:\"\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan style=\"font-size:\" small\u003e90-7468-12\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003eNO23212.5CM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"font-size:\" small\u003e12.5\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cspan style=\"color:\"\u003e\u003cspan style=\"color:\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e","brand":"Advantec MFS","offers":[{"title":"PK (1)","offer_id":51110943392059,"sku":"90-7468-12-PK","price":29.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7468-12.png?v=1784705107"},{"product_id":"qualitative-filter-paper-grade-642-15-cm-2-0-micron-100-pk-6420-1500","title":"Qualitative Filter Paper, Grade 642, 15 cm, 2.0 micron, 100\/PK, Ahlstrom, 6420-1500","description":"\u003cp\u003e\u003cstrong\u003eAhlstrom® Qualitative Filter Paper, Grade 642, 15 cm, 2.0 micron, 100\/PK, 6420-1500\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2 ?m, Medium Speed\u003c\/li\u003e\n\u003cli\u003eHas finer particle retention than Grade 601 but with slightly lower filtration speed\u003c\/li\u003e\n\u003cli\u003eHigher absorption than Grade 601\u003c\/li\u003e\n\u003cli\u003eUsed in general laboratory applications to retain particles above 2 ?m in size\u003c\/li\u003e\n\u003cli\u003eAlso found in agricultural and environmental laboratories for plant growth trials, soil testing, and air analysis for monitoring specific contaminants and in filtration of organic and sulfide precipitates.\u003c\/li\u003e\n\u003cli\u003eNon wet-strengthened\u003c\/li\u003e\n\u003cli\u003eSuitable for quadrant folded or gravity flow applications\u003c\/li\u003e\n\u003cli\u003eEquivalent to Whatman® Grade 2\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ahlstrom","offers":[{"title":"PK (1)","offer_id":51110946275643,"sku":"90-7481-07-PK","price":20.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7481-07.png?v=1784777670"},{"product_id":"qualitative-filter-paper-grade-642-4-25-cm-2-0-micron-100-pk-ahlstrom-6420-0425","title":"Qualitative Filter Paper, Grade 642, 4.25 cm, 2.0 micron, 100\/PK, Ahlstrom, 6420-0425","description":"\u003cp\u003e\u003cstrong\u003eAhlstrom-Munksjö® Qualitative Filter Paper, Grade 642, 4.25 cm, 2.0 micron, 100\/PK, 6420-0425\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e2 μm, Medium Speed\u003c\/li\u003e \u003cli\u003eHas finer particle retention than Grade 601 but with slightly lower filtration speed\u003c\/li\u003e \u003cli\u003eHigher absorption than Grade 601\u003c\/li\u003e \u003cli\u003eUsed in general laboratory applications to retain particles above 2 μm in size\u003c\/li\u003e \u003cli\u003eAlso found in agricultural and environmental laboratories for plant growth trials, soil testing, and air analysis for monitoring specific contaminants and in filtration of organic and sulfide precipitates.\u003c\/li\u003e \u003cli\u003eNon wet-strengthened\u003c\/li\u003e \u003cli\u003eSuitable for quadrant folded or gravity flow applications\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e \u003ctable style=\"width:\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003eClass\u003c\/td\u003e \u003ctd\u003eQualitative\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eSpeed\u003c\/td\u003e \u003ctd\u003eMedium\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eGrade\u003c\/td\u003e \u003ctd\u003e642\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eSize\u003c\/td\u003e \u003ctd\u003e4.25 cm diameter\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eRetention\u003c\/td\u003e \u003ctd\u003e2.0 µm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFiltration Speed Herzberg\u003c\/td\u003e \u003ctd\u003e229 seconds\/100 mL\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFiltration Speed Rapidity\u003c\/td\u003e \u003ctd\u003e30 mL\/minute\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eLoading Capacity\u003c\/td\u003e \u003ctd\u003eMedium\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eEquivilent Grade\u003c\/td\u003e \u003ctd\u003eWhatman Grade 2\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eMaterial\u003c\/td\u003e \u003ctd\u003e\u0026gt; 95% super refined α-cellulose and linter fibers\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e","brand":"Ahlstrom","offers":[{"title":"PK (1)","offer_id":51110946308411,"sku":"90-7481-08-PK","price":9.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7481-08_d2b223d2-6f90-4a3e-a424-1031c3dfbced.png?v=1784777672"},{"product_id":"qualitative-filter-paper-grade-609-4-25-cm-4-0-micron-100-pk-6090-0425","title":"Qualitative Filter Paper, Grade 609, 4.25 cm, 4.0 micron, 100\/PK, 6090-0425","description":"\u003cp\u003e\u003cstrong\u003eAhlstrom® Qualitative Filter Paper, Grade 609, 4.25 cm, 4.0 micron, 100\/PK, 6090-0425\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e4 ?m, Medium Speed\u003cbr\u003eThis grade is evolution of Grade 613 for use in beer industry\u003c\/li\u003e\n\u003cli\u003eWith an extremely low iron and nitrogen content for analysis of protein in beer\u003c\/li\u003e\n\u003cli\u003eNon wet-strengthened\u003c\/li\u003e\n\u003cli\u003eSuitable for quadrant folded or gravity flow applications\u003c\/li\u003e\n\u003cli\u003eNo Cytiva® Whatman® equivalent\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ahlstrom","offers":[{"title":"PK (1)","offer_id":51110946341179,"sku":"90-7481-09-PK","price":9.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7481-09_b30ea22e-6f79-4c61-908c-4b1b7c4006dc.png?v=1784705171"},{"product_id":"qualitative-filter-paper-grade-631-40-cm-10-0-micron-100-pk-6310-4000","title":"Qualitative Filter Paper, Grade 631, 40 cm, 10.0 micron, 100\/PK, 6310-4000","description":"\u003cp\u003e\u003cstrong\u003eAhlstrom® Qualitative Filter Paper, Grade 631, 40 cm, 10.0 micron, 100\/PK, 6310-4000\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e10 ?m, Medium Speed\u003c\/li\u003e\n\u003cli\u003eUsed for filtration of coarse particles and gelatinous precipitates such as ferric aluminum and magnesium hydroxides\u003c\/li\u003e\n\u003cli\u003eUsed in air monitoring and gas filtration when high flow rate is needed\u003c\/li\u003e\n\u003cli\u003eAlso found in routine cleanup analysis of insoluble liquids such as biological fluids and organic elements\u003c\/li\u003e\n\u003cli\u003eNon wet-strengthened\u003c\/li\u003e\n\u003cli\u003eSuitable for quadrant folded or gravity flow applications\u003c\/li\u003e\n\u003cli\u003eEquivalent to Whatman® Grade 4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ahlstrom","offers":[{"title":"PK (1)","offer_id":51110946472251,"sku":"90-7481-40-PK","price":123.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7481-40.png?v=1784777674"},{"product_id":"qualitative-filter-paper-grade-631-4-25-cm-10-0-micron-100-pk-ahlstrom-6310-0425","title":"Qualitative Filter Paper, Grade 631, 4.25 cm, 10.0 micron, 100\/PK, Ahlstrom, 6310-0425","description":"\u003cp\u003e\u003cstrong\u003eAhlstrom® Qualitative Filter Paper, Grade 631, 4.25 cm, 10.0 micron, 100\/PK, 6310-0425\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e10 ?m, Medium Speed\u003c\/li\u003e\n\u003cli\u003eUsed for filtration of coarse particles and gelatinous precipitates such as ferric aluminum and magnesium hydroxides\u003c\/li\u003e\n\u003cli\u003eUsed in air monitoring and gas filtration when high flow rate is needed\u003c\/li\u003e\n\u003cli\u003eAlso found in routine cleanup analysis of insoluble liquids such as biological fluids and organic elements\u003c\/li\u003e\n\u003cli\u003eNon wet-strengthened\u003c\/li\u003e\n\u003cli\u003eSuitable for quadrant folded or gravity flow applications\u003c\/li\u003e\n\u003cli\u003eEquivalent to Whatman® Grade 4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ahlstrom","offers":[{"title":"PK (1)","offer_id":51110946505019,"sku":"90-7481-41-PK","price":9.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7481-41.png?v=1784777676"},{"product_id":"filter-paper-wet-strengthed-grade-992-34-cm-100-pk-ahlstrom-9920-3400","title":"Filter Paper, Qualitative, Grade 992, Creped, (Equivalent to Sharkskin), 34 cm Diameter, 100\/PK, Ahlstrom, 9920-3400","description":"\u003cp\u003e\u003cstrong\u003eAhlstrom® Filter Paper, Qualitative, Grade 992, Creped, (Equivalent to Sharkskin), 34 cm Diameter, 100\/PK, 9920-3400\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThis grade of filter is made from super-refined cellulose and have been specifically designed to have particular properties for each technical application\u003c\/li\u003e\n\u003cli\u003eIt has equivalent properties to Whatman® Sharkskin papers\u003c\/li\u003e\n\u003cli\u003eHigh-speed, fast-filtering qualitative filter paper designed for high-loading capacity\u003c\/li\u003e\n\u003cli\u003eHigh wet strength\u003c\/li\u003e\n\u003cli\u003eCreped surface is ideal for rapid filtration, with retention rate of 43 microns\u003c\/li\u003e\n\u003cli\u003eIt is frequently used for general coarse filtration, liquid clarification, and as septum to hold filter aids in laboratory settings\u003c\/li\u003e\n\u003cli\u003eApplications range from filtration of beverages to purification of electroplating baths\u003c\/li\u003e\n\u003cli\u003eResistant to weak acids and bases\u003c\/li\u003e\n\u003cli\u003eOften used as protective paper for filter press cloths, as well as in processing of cocoa butter and edible oils\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ahlstrom","offers":[{"title":"PK (1)","offer_id":51110946668859,"sku":"90-7481-99-PK","price":71.5,"currency_code":"USD","in_stock":true},{"title":"CS (10)","offer_id":51110946701627,"sku":"90-7481-99-CS","price":715.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7481-99.png?v=1784777680"},{"product_id":"circular-grade-1-filter-paper-24-cm-diameter-100-pk-fpr240","title":"Circular Grade 1 Filter Paper, 24 cm Diameter, 100\/PK, FPR240","description":"\u003cp\u003e\u003cstrong\u003eCircular Grade 1 Filter Paper, 24 cm Diameter, 100\/PK, FPR240\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures: \u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eQualitative filter paper for routine purposes\u003c\/li\u003e \u003cli\u003eMedium porosity and flow rate\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e \u003c\/p\u003e","brand":"Others","offers":[{"title":"PK (1)","offer_id":51110947717435,"sku":"90-7491-19-PK","price":34.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7491-19.png?v=1784705212"},{"product_id":"filter-paper-grade-113v-creped-qualitative-for-use-with-a-conical-filter-funnel-15-cm-100-pk-whatman-1213-150","title":"Filter Paper, Grade 113V Creped Qualitative, for Use with a  Conical Filter Funnel, 15 cm, 100\/PK, Whatman, 1213-150","description":"\u003cp\u003eTime-saving Whatman qualitative grades are offered in folded (prepleated) form, which gives major advantages over flat circles:\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e• Savings in time required to quadrant-fold circles to fit conical filter funnels in repetitive or multiple analyses\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e• 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\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e• Increased total loading capacity as more filter area is available\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e• Maintained flow rate due to the reduction in filter paper contact with funnel side and, the self-supporting shape of the filter itself\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e• The prepleating does not significantly affect any of the technical data and the same figures may be used for the flat circles\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003e\u003cbr\u003eGrade 113V: 30 μm (fast, creped filer paper)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eVery thick and strong filter with creped surface for extremely high loading capacity, particularly in folded form. Fastest flow rate of any qualitative grade. Ideal for coarse particles and gelatinous precipitates.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Cytiva","offers":[{"title":"PK (1)","offer_id":51110957482299,"sku":"90-7514-07-PK","price":159.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7514-07.png?v=1784705492"},{"product_id":"filter-paper-qualitative-grade-597-medium-fast-filter-paper-with-medium-to-fine-particle-retention-12-7-mm","title":"Filter Paper, Qualitative, Grade 597, Medium Fast Filter Paper with Medium to Fine Particle Retention, 12.7 mm","description":"\u003cp\u003eCytiva Whatman Grade 597 Qualitative Filter Paper Standard Grade, circle, 12.7 mm\u003c\/p\u003e\n\u003cp id=\"overview\" class=\"lead-paragraph\"\u003eA 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).\u003c\/p\u003e\n\u003cdiv class=\"rte-wrapper\"\u003e\n\u003cp\u003eThese 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.\u003c\/p\u003e\n\u003cdiv class=\"read-more-expandable\"\u003e\n\u003cp\u003eA 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).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Cytiva","offers":[{"title":"EA (1)","offer_id":51110957908283,"sku":"90-7521-15-EA","price":107.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7521-15.png?v=1784705505"},{"product_id":"filter-paper-disc-for-10-25-inside-diameter-table-top-buchner-funnel-with-a-rough-crepe-surface-package-of-100-bel-art-products-h14632-0010","title":"Filter Paper Disc, for 10.25'' Inside Diameter Table-Top Buchner Funnel, with a Rough Crepe Surface, Package of 100, Bel Art Products, H14632-0010","description":"\u003cp\u003eThese heavy bond grade filter paper discs are custom-sized to fit Table-Top Buchner funnels and have a thickness of 0.30mm.  \u003cspan class=\"parced-bullet-item\"\u003eMade from creped white cellulose to improve porosity\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan class=\"parced-bullet-item\"\u003eFlow rate: 90ml per minute\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan class=\"parced-bullet-item\"\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cspan class=\"parced-bullet-item\"\u003e Wet burst strength is greater than 68 KPa; able to retain particles as small as 3 microns\u003c\/span\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e","brand":"Bel-Art","offers":[{"title":"PK (1)","offer_id":51110978683195,"sku":"90-8021-10-PK","price":137.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-8021-10_bfbd0562-282e-4430-b914-937331f6eb50.png?v=1784705984"},{"product_id":"filter-paper-disc-for-18-in-inside-diameter-table-top-buchner-funnel-with-a-rough-crepe-surface-package-of-100-bel-art-products-h14632-0018","title":"Filter Paper Disc, for 18 in. 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(1)","offer_id":51110978781499,"sku":"90-8021-12-PK","price":257.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-8021-12.png?v=1784705985"},{"product_id":"qualitative-filter-paper-grade-237-4-25-cm-3-0-micron-50-pk-ahlstrom-2370-0425","title":"Qualitative Filter Paper, Grade 237, 4.25 cm, 3.0 micron, 50\/PK, Ahlstrom, 2370-0425","description":"\u003cp\u003e\u003cstrong\u003eAhlstrom® Qualitative Filter Paper, Grade 237, 4.25 cm, 3.0 micron, 50\/PK, 2370-0425\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e3 ?m, slow speed\u003c\/li\u003e\n\u003cli\u003eHigh absorbency grade is twice as thick as Grade 642 with similar particle retention\u003c\/li\u003e\n\u003cli\u003eSuperior absorbency offers excellent performance when used as sample carrier\u003c\/li\u003e\n\u003cli\u003eExtra thickness gives higher wet strength and loading capacity, enabling more precipitate to be held without clogging filter\u003c\/li\u003e\n\u003cli\u003eAlso highly suitable for use in Buchner funnels and for dye filtration\u003c\/li\u003e\n\u003cli\u003eOther applications include: gravimetric analysis, electrophoresis blotting, filtration of medium fine precipitates and general laboratory filtration with high solids loading\u003c\/li\u003e\n\u003cli\u003eEquivalent to Cytiva® Whatman® Grade 3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ahlstrom","offers":[{"title":"PK (1)","offer_id":51111493861691,"sku":"EDC-2370-0425-PK","price":8.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/EDC-2370-0425_b019a984-f9dc-437c-a4a6-535b910ccd4a.png?v=1784718287"},{"product_id":"qualitative-filter-paper-grade-601-4-25-cm-1-5-micron-100-pk-ahstrom-6010-0425","title":"Qualitative Filter Paper, Grade 601, 4.25 cm, 2.5 micron, 100\/PK, Ahstrom, 6010-0425","description":"\u003cp\u003e\u003cstrong\u003eAhlstrom® Qualitative Filter Paper, Grade 601, 4.25 cm, 2.5 micron, 100\/PK, 6010-0425\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2.5 ?m, medium speed\u003c\/li\u003e\n\u003cli\u003eCovers wide range of laboratory applications and is used for clarifying liquids and for rapid filtration of coarser precipitates such as lead sulfate, lead chromate, calcium oxalate,calcium carbonate, aluminum phosphate, barium carbonate and beryllium hydroxide\u003c\/li\u003e\n\u003cli\u003eCan be found in oil analysis, sesed testing and in air pollution to collect dust-laden air\u003c\/li\u003e\n\u003cli\u003eAlso commonly used in food industry to separate foodstuffs from associated liquid or extracting liquid\u003c\/li\u003e\n\u003cli\u003eEquivalent to Cytiva® Whatman® Grade 1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ahlstrom","offers":[{"title":"PK 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resin solutions\u003c\/li\u003e\n\u003cli\u003eAlso found in construction product testing and is used by students to retain large flocculents and precipitates\u003c\/li\u003e\n\u003cli\u003eNon wet-strengthened\u003c\/li\u003e\n\u003cli\u003eSuitable for quadrant folded or gravity flow applications\u003c\/li\u003e\n\u003cli\u003eNo Whatman® equivalent\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ahlstrom","offers":[{"title":"PK (1)","offer_id":51111494517051,"sku":"EDK-617-35-PK","price":880.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/EDK-617-35_9b59368a-c607-4b47-aaa4-54c7bf6d5dd3.png?v=1784777928"},{"product_id":"fisherbrand-qualitative-grade-plain-filter-paper-circles-p8-grade-7-cm-100-pk","title":"Fisherbrand Qualitative Grade Plain Filter Paper Circles - P8 Grade, 7 cm, 100\/PK","description":"\u003cp id=\"qa_desc_hdr_label\"\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCellulose fiber papers\u003c\/li\u003e \u003cli\u003eGood wet strength\u003c\/li\u003e \u003cli\u003eSuitable for gravity, vacuum filtration systems and low suction filtration\u003c\/li\u003e \u003cli\u003eParticle Retention: 20–25µm\u003c\/li\u003e \u003cli\u003eCoarse porosity\u003c\/li\u003e \u003cli\u003eFiltration Speed: Herzberg, 55 seconds\u003c\/li\u003e \u003cli\u003eFlowrate: Fast—160mL\/min.\u003c\/li\u003e \u003cli\u003eSurface: Smooth, open texture\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eNot suitable for nitrogen analysis.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eSuitable for coarse and gelatinous precipitates. Retains Fe(OH)\u003csub\u003e3\u003c\/sub\u003e, Al(OH)\u003csub\u003e3\u003c\/sub\u003e, metallic sulfides, iron ores. For clarifying solutions, oils. For zinc analysis (Fe ppt removal). Size 19cm (09-804) widely used for sugar analysis.\u003c\/p\u003e","brand":"Others","offers":[{"title":"PK (1)","offer_id":51111504118075,"sku":"FSC-09-795B-PK","price":11.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/FSC-09-795B.png?v=1784718420"},{"product_id":"fisher-09-795h-qualitative-grade-plain-filter-paper-p-8-grade-20-5-cm-diameter-circles","title":"Fisher 09-795H Qualitative Grade Plain Filter Paper, P-8 Grade, 20.5 cm Diameter Circles","description":"\u003cp\u003eIdeal for clarifying and removing particles of 20μm and larger, and in applications that do not require a low-ash or ashless paper.\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003eDescription\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cul\u003e \u003cli\u003eCellulose fiber papers\u003c\/li\u003e \u003cli\u003eGood wet strength\u003c\/li\u003e \u003cli\u003eSuitable for gravity, vacuum filtration systems and low suction filtration\u003c\/li\u003e \u003cli\u003eParticle Retention: 20–25μm\u003c\/li\u003e \u003cli\u003eCoarse porosity\u003c\/li\u003e \u003cli\u003eFiltration Speed: Herzberg, 55 seconds\u003c\/li\u003e \u003cli\u003eFlowrate: Fast—160mL\/min.\u003c\/li\u003e \u003cli\u003eSurface: Smooth, open texture\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003eNot suitable for nitrogen analysis.\u003c\/p\u003e \u003cp\u003eApplications:\u003c\/p\u003e \u003cp\u003eSuitable for coarse and gelatinous precipitates. 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