Whatman qualitative and quantitative grades are offered in this convenient format which has major advantages over flat circles. Savings in time required to quadrant-fold circles to fit conical Filter funnels in repetitive or multiple analysis.Typical applications include: 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 atomic absorption (AA) spectrometry. Also used as a high-purity Filter in the collection of trace elements and radionuclides from the atmosphere.Ashless: .7% ash maximum for Grades 4 to 44 and a maximum of .1% for the 589 Grades. These are very pure Filters suitable for a wide range of critical analytical filtration procedures.
RETURNS, EXCHANGE & REFUNDS
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- Qualified Returns/Refunds/Exchange SHOULD BE MADE WITHIN (14) DAYS FROM DELIVERY DATE.
- Returns from sales within US and Canada will be subject to inspection to determine condition of the item/s.
- Only items that are brand new condition with ALL the parts and accessories that came with the box including the original packaging materials will be accepted.
- Any used or opened items such as, but not limited to, accessories, supplies, and consumables are NOT returnable or exchangeable. Shipping and handling are non-refundable as well.
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