{"product_id":"whatman-grade-287-qualitative-filter-papers","title":"Whatman Grade 287 ½ Qualitative Filter Papers","description":"\u003cdiv\u003eKieselguhr prepleated paper with a medium to slow flow rate and additional adsorption effect.\u003c\/div\u003e\n\u003cul class=\"cui-list cui-list--bullet\"\u003e\n\u003cli\u003eSavings in time required to quadrant-fold circles to fit conical filter funnels in repetitive or multiple analyses.\u003c\/li\u003e\n\u003cli\u003eDecreased 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\/li\u003e\n\u003cli\u003eIncreased total loading capacity as more filter area is available.\u003c\/li\u003e\n\u003cli\u003eMaintained flow rate due to the reduction in filter paper contact with funnel side and the self-supporting shape of the filter itself.\u003c\/li\u003e\n\u003cli\u003eThe prepleating does not significantly affect any of the technical data, and the same figures may be used for the flat circles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cp\u003eTime-saving Whatman qualitative grades are offered in this convenient form, which gives major advantages over flat circles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"-spacing--bottom-24\"\u003e\n\u003ch2\u003eGrade 287 ½\u003c\/h2\u003e\n\u003cp\u003eAdditional adsorption effect e.g. for the separation of very fine semi-colloidal turbidity, for clarifying milk serum, starch solutions, soil suspensions or sugar-containing solutions prior to polarimetry or refractometry. Also available in flat stock form as Grade 287.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"DSCBalances","offers":[{"title":"10310245","offer_id":36822096380054,"sku":"10310245","price":66.79,"currency_code":"USD","in_stock":true},{"title":"10310247","offer_id":36822097592470,"sku":"10310247","price":80.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0489\/6990\/8374\/files\/digi-30487-original-png.jpg?v=1792458074","url":"https:\/\/www.dscbalances.com\/products\/whatman-grade-287-qualitative-filter-papers","provider":"DSCBalances","version":"1.0","type":"link"}