Whatman Quantitative Filter Papers, Ashless, Grade 40
Whatman Quantitative Filter Papers, Ashless, Grade 40
Whatman Quantitative Filter Papers, Ashless, Grade 40
Whatman Grade 40 high-purity filters from GE Healthcare’s Life Sciences business are general-purpose papers for quantitative analysis. Grade 40 filters are suitable for a variety of analytical filtration applications.
High-purity filters contain 0.007% maximum ash content
Medium nominal particle retention rating of 8 µm
Medium filtration speed (Herzberg 340 s)
Particularly useful for gravimetric analysis
GE offers a range of Whatman ashless filter paper for your gravimetric analysis needs. See our other ashless grades to find the right filter for your sample, or use our hardened ashless grades if your analysis involves strong acid/alkali suspensions.
Applications for high-purity Grade 40 filters
High-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. GE’s high-purity Whatman Grade 40 ashless paper is suited to:
Soil analysis, when separating solid matter from aqueous extracts
Quantitative determination of milk sediment
Use as a clean-up filter for solutions prior to atomic absorption (AA) spectrometry
Analysis of constituent components in cements, clays, iron, and steel products
Collection of trace elements and radionuclides from the atmosphere
Looking for a filter paper, membrane filter, or syringe filter? Let GE help you find the optimal filter for your needs to ensure reliable analysis.
Specification
Grade :Grade 40
Format :Circles
Type :Ashless
Typical Particle Retention in Liquid1 :8 µm
Nominal Thickness :210 µm
Typical water flow rate2 :25 ml/min
Nominal Basis Weight :95 g/m²
Nominal Air Flow Rate :21 s/100 mL/in²
Nominal Ash Content3 :0.007%
Material :High-quality cotton linters
Alpha Cellulose Content Min. :≥98%
Typical Trace Element Levels :Aluminium 2.5 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 8.3 µg/g Chromium 1.5 µg/g Copper 2 µg/g Iron 12 µg/g Lead <0.5 µg/g Magnesium 4 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 2.3 µg/g Silicon 6.2 µg/g Sodium 16.8 µg/g Zinc 64.5 µg/g
Application :Designed for gravimetric analysis and the preparation of samples for instrumental analysis. Gravimetric analysis for numerous components in cements, clays, iron, and steel products. As a primary filter for separating solid matter from aqueous extracts in general soil analysis. Quantitative determination of sediments in milk and as a pure analytical grade clean-up filter for solutions prior to AA spectrometry. Also used as a high-purity filter in the collection of trace elements and radionuclides from the atmosphere.
Dimensions :Ø 150 mm
Whatman Quantitative Filter Papers, Ashless, Grade 40 Whatman Filter Papers Range of products are mostly available in ready stock and it can delivered immediately throughout india
Apart from supplying Whatman Filter Papers products in India through dealers network, catering to a variety of customers ranging from Electrical Contractors, Engineering Industries, Turnkey Construction Companies, Railways, Defence Installations, Research Laboratories, Educational Institutes and various Research and Development laboratories of leading national and multinational companies.
We DFT TECH, are Whatman Filter Papers Authorized Distributors, Importers, Stockists, Dealers and Suppliers of Whatman Quantitative Filter Papers, Ashless, Grade 40 Products in Chennai, Wayanad, Gujarat, Odisha, Rajasthan, West Bengal, Tripura, Palakkad, Kanyakumari, Theni, Krishnagiri, Namakkal, Sivagangai, Perambalur, Dharmapuri, Erode, Pudukottai and etc..
