{"product_id":"whatman-grade-50-filter-papers-grade-50-filter-paper-4-25-cm-1450-042","title":"Whatman Grade 50 Filter Papers - Grade 50 Filter Paper, 4.25 cm - 1450-042","description":"\u003ch6\u003eThis item may require 5-7 days to ship out from our facility.\u003c\/h6\u003e\u003cp\u003e\u003cstrong\u003eProduct Information: \u003c\/strong\u003eGrade 50 Filter Paper, 4.25 cm\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManufacturer Part # \u003c\/strong\u003e1450-042\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\u003cdiv class=\"medMoreSKUDescText\" id=\"skuDescId\"\u003e \u003cul\u003e\n\u003cli\u003e Hardened low ash: 0.015% ash maximum\u003c\/li\u003e\n\u003cli\u003e These filters are treated with a strong acid to remove trace metals and produce high wet strength and chemical resistance\u003c\/li\u003e\n\u003cli\u003e These are particularly suitable for Büchner filtration where the tough smooth surface of the filter makes it easy to recover precipitates\u003c\/li\u003e\n\u003cli\u003e The maximum ash content of these grades is intermediate between ashless and qualitative grades\u003c\/li\u003e\n\u003cli\u003e They are particularly suitable for Büchner filtrations where it is desirable to recover the precipitate from the filter surface after filtration\u003c\/li\u003e\n\u003cli\u003e Other characteristics include high wet strength and chemical resistance, which are similar to those of the acid-hardened ashless filter papers\u003c\/li\u003e\n\u003cli\u003e Retention of very fine crystalline precipitates\u003c\/li\u003e\n\u003cli\u003e The thinnest of all Whatman filter papers\u003c\/li\u003e\n\u003cli\u003e Slow flow rate\u003c\/li\u003e\n\u003cli\u003e Hardened and highly glazed surface\u003c\/li\u003e\n\u003cli\u003e This finish also keeps the paper free from loose surface fibers\u003c\/li\u003e\n\u003cli\u003e Highly suitable for qualitative or quantitative filtrations requiring vacuum assistance on Büchner or three-piece filter funnels\u003c\/li\u003e\n\u003cli\u003e Very strong when wet. Will withstand wet handling and precipitate removal by scraping. In the electronics industry, the virtual absence of fiber shedding is utilized in carriers for integrated circuits\u003c\/li\u003e\n\u003cli\u003e This grade is also available in Smear Tab format for wipe testing (e.g., testing of surfaces for radionuclide contamination)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003ctable id=\"medSkuSpecTable\" class=\"medSKUTableDetails table-striped\" width=\"100%\"\u003e \u003ctr\u003e \u003ctd class=\"\"\u003eHPIS Code\u003c\/td\u003e \u003ctd\u003e 220_40_50_0\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"\"\u003eLatex Free\u003c\/td\u003e \u003ctd\u003e No\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"\"\u003eUNSPSC\u003c\/td\u003e \u003ctd\u003e 41104929\u003c\/td\u003e \u003c\/tr\u003e \u003c\/table\u003e","brand":"Whatman","offers":[{"title":"100 Each \/ Pack","offer_id":31858895061049,"sku":"1450-042","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0007\/0510\/1881\/products\/GEH1450042_PRI03.jpg?v=1597369746","url":"https:\/\/www.graylinemedical.com\/products\/whatman-grade-50-filter-papers-grade-50-filter-paper-4-25-cm-1450-042","provider":"Grayline Medical","version":"1.0","type":"link"}