{"product_id":"whatman-grade-40-quantitative-ashless-filter-paper-12-5-cm-1440-125","title":"WHATMAN™ Grade 40 Quantitative Ashless Filter Paper – 12.5 cm (125 mm), 8 µm, Cat. No. 1440-125, Pack of 100","description":"\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhatman Grade 40 Quantitative Ashless Filter Paper 1440-125\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-purity, general-purpose filter paper designed for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003equantitative and gravimetric analysis\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. With a diameter of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e125 mm (12.5 cm)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and medium filtration speed, it provides reliable filtration while retaining particles down to approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e8 µm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe ashless construction makes it particularly suitable for analytical applications where low background contamination and accurate weighing of residues are important. The filter paper is made from high-quality cotton linters and has a maximum ash content of just \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e0.007%\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBrand:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Whatman\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eGrade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Grade 40\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eProduct Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Quantitative Ashless Filter Paper\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eProduct Code:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1440-125\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eDiameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 125 mm \/ 12.5 cm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eShape:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Circular\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePack Size:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 100 pieces\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eParticle Retention:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 8 µm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eThickness:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 210 µm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBasis Weight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 95 g\/m²\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eAsh Content:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e ≤ 0.007%\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eFiltration Speed:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Medium\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eHerzberg Filtration Time:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 340 seconds\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMaterial:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-quality cotton linters\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eApplication:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Quantitative and gravimetric analysis\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eApplications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhatman Grade 40 filter paper is suitable for a wide range of laboratory and analytical applications, including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eGravimetric analysis\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eSoil analysis\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and separation of solid matter from aqueous extracts\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eMilk sediment determination\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eSample preparation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for instrumental analysis\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eClean-up filtration\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e before Atomic Absorption (AA) spectrometry\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAnalysis of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecement, clay, iron and steel\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eAir pollution monitoring\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCollection of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003etrace elements and radionuclides\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGeneral laboratory filtration where high-purity, ashless filtration is required\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eWhy Choose Whatman Grade 40?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eGrade 40 is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emedium-retention, medium-speed ashless filter paper\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, making it a good choice when both filtration efficiency and analytical accuracy are required. Its very low ash content helps minimise interference during procedures where the filter residue is subsequently ignited and weighed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWhatman\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eGrade\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e40\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePart Number\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1440-125\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFilter Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eQuantitative \/ Ashless\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDiameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e125 mm (12.5 cm)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCircular\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eQuantity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100 filters\/pack\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eParticle Retention\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 µm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eThickness\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e210 µm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBasis Weight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e95 g\/m²\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAsh Content\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e≤ 0.007%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFiltration Speed\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMedium\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHerzberg Speed\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e340 s\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaterial\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-quality cotton linters\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cspan\u003eIdeal For\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eLaboratories | Research Institutions | Educational Institutions | Environmental Testing | Soil Testing | Food \u0026amp; Dairy Testing | Cement \u0026amp; Mining Laboratories | Pharmaceutical Laboratories | Industrial Quality Control\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Description for E-commerce\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eBuy Whatman Grade 40 Quantitative Ashless Filter Paper 12.5 cm (125 mm), Model 1440-125.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed for accurate quantitative and gravimetric analysis, this high-purity filter paper offers approximately 8 µm particle retention, medium filtration speed and an exceptionally low ash content of ≤0.007%. It is suitable for soil analysis, milk sediment testing, sample preparation, gravimetric analysis, AA spectrometry sample clean-up and various industrial laboratory applications. Supplied as \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e100 circular filters per pack\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSearch-Friendly Product Title\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWhatman Grade 40 Quantitative Ashless Filter Paper 12.5 cm (125 mm) – 1440-125 – Pack of 100\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"WHATMAN","offers":[{"title":"Default Title","offer_id":47302661603501,"sku":"1440-125","price":7799.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/7666\/9357\/files\/WHATMAN40.png?v=1787564235","url":"https:\/\/rinstruments.com\/products\/whatman-grade-40-quantitative-ashless-filter-paper-12-5-cm-1440-125","provider":"Rinstruments","version":"1.0","type":"link"}