{"product_id":"whatman-grade-40-quantitative-ashless-filter-paper-medium-fine-precipitates-retained-9-cm","title":"Whatman Grade 40 Quantitative Ashless Filter Paper, Medium Fine Precipitates Retained, 9 cm","description":"\u003cp\u003e\u003cstrong\u003eCytiva® Whatman® Grade 40 Quantitative Ashless Filter Paper, Medium Fine Precipitates Retained, 9 cm, 1440-090\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-purity, general-purpose papers for quantitative analysis\u003c\/li\u003e\n\u003cli\u003eSuitable for a variety of analytical filtration applications\u003c\/li\u003e\n\u003cli\u003eHigh-purity filters contain 0.007% maximum ash content\u003c\/li\u003e\n\u003cli\u003eMedium nominal particle retention rating of 8 µm\u003c\/li\u003e\n\u003cli\u003eMedium filtration speed (Herzberg 340 s)\u003c\/li\u003e\n\u003cli\u003eParticularly useful for gravimetric analysis\u003c\/li\u003e\n\u003cli\u003eWhatman® offers a wide range of ashless filter paper for gravimetric analysis\u003c\/li\u003e\n\u003cli\u003eUse hardened ashless grades if analysis involves strong acid\/alkali suspensions\u003c\/li\u003e\n\u003cli\u003eHigh-purity filters support accurate analysis in applications sensitive to very low levels of background contamination and in gravimetric analysis where ash content might affect weight measurements of combusted samples\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eSoil analysis, when separating solid matter from aqueous extracts\u003c\/li\u003e\n\u003cli\u003eQuantitative determination of milk sediment\u003c\/li\u003e\n\u003cli\u003eUse as a clean-up filter for solutions prior to atomic absorption (AA) spectrometry\u003c\/li\u003e\n\u003cli\u003eAnalysis of constituent components in cements, clays, iron, and steel products\u003c\/li\u003e\n\u003cli\u003eCollection of trace elements and radionuclides from the atmosphere\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Cytiva","offers":[{"title":"PK (1)","offer_id":51110951715131,"sku":"90-7501-04-PK","price":73.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7501-04_640a8cc0-95e6-4a31-8fc5-02cb6618fffe.png?v=1785309739","url":"https:\/\/preiser.com\/products\/whatman-grade-40-quantitative-ashless-filter-paper-medium-fine-precipitates-retained-9-cm","provider":"Preiser Scientific","version":"1.0","type":"link"}