{"product_id":"cytiva-whatman-grade-540-pyramid-pre-folded-cellulose-filter-paper-90-mm-diameter-1000-pk-1540-10123","title":"Cytiva Whatman Grade 540 Pyramid Pre-Folded Cellulose Filter Paper, 90 mm Diameter, 1000\/PK, 1540-10123","description":"\u003cp\u003e\u003cstrong\u003eCytiva® Whatman® Grade 540 Pyramid Pre-Folded Cellulose Filter Paper, 90 mm Diameter, 1000\/PK, 1540-10123\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePyramid (square) folded filter paper is easy to use and saves valuable time when undertaking repetitive or multiple analyses\u003c\/li\u003e\n\u003cli\u003eEasily fits into conical funnels\u003c\/li\u003e\n\u003cli\u003eSaves valuable time when undertaking repetitive or multiple analyses\u003c\/li\u003e\n\u003cli\u003eProvides same high quality and consistency that expected from all Whatman filter papers\u003c\/li\u003e\n\u003cli\u003eOther sizes available to special order\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 85%;\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlpha Cellulose Content Min.\u003c\/td\u003e\n\u003ctd\u003e≥98%  \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eFrequently used in the gravimetric analysis of metals in acid\/alkali solutions and in collecting hydroxides after precipitation by strong alkalis.  \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrade\u003c\/td\u003e\n\u003ctd\u003e540 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ehigh quality cotton linters \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Ash Content\u003c\/td\u003e\n\u003ctd\u003e0.005% \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal air flow rate\u003c\/td\u003e\n\u003ctd\u003e13 s\/100 mL\/in2 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal basis weight\u003c\/td\u003e\n\u003ctd\u003e85 g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal thickness\u003c\/td\u003e\n\u003ctd\u003e160 µm \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ehardened ashless \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Particle Retention in Liquid\u003c\/td\u003e\n\u003ctd\u003e8 µm  \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Trace Element Levels\u003c\/td\u003e\n\u003ctd\u003eAluminium 3.4 µg\/g Antimony \u0026lt;0.5 µg\/g Arsenic \u0026lt;0.5 µg\/g Barium \u0026lt;0.5 µg\/g Boron \u0026lt;1 µg\/g Calcium 14.7 µg\/g Chromium 1.1 µg\/g Copper 8.2 µg\/g Iron 16.3 µg\/g Lead \u0026lt;0.5 µg\/g Magnesium 3.3 µg\/g Manganese \u0026lt;0.5 µg\/g Mercury \u0026lt;0.5 µg\/g Potassium 3.7 µg\/g Silicon \u0026lt;6 µg\/g Sodium 17 µg\/g Zinc 87.8 µg\/g  \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical water flow rate\u003c\/td\u003e\n\u003ctd\u003e97 ml\/min \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormat\u003c\/td\u003e\n\u003ctd\u003eFolded \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack size\u003c\/td\u003e\n\u003ctd\u003e1000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Cytiva","offers":[{"title":"PK (1)","offer_id":51110954697019,"sku":"90-7506-15-PK","price":849.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7506-15.png?v=1785309816","url":"https:\/\/preiser.com\/products\/cytiva-whatman-grade-540-pyramid-pre-folded-cellulose-filter-paper-90-mm-diameter-1000-pk-1540-10123","provider":"Preiser Scientific","version":"1.0","type":"link"}