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  • Whatman 10406870 Cellulose ME25/21 ST Mixed Ester Filter Membrane, 47mm White Circle with 3.1mm Black Grid Sterile, 0.45 Micron (Pack of 100)
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by Whatman

Whatman 10406870 Cellulose ME25/21 ST Mixed Ester Filter Membrane, 47mm White Circle with 3.1mm Black Grid Sterile, 0.45 Micron (Pack of 100)

2 customer reviews

Price: $48.38 & FREE Shipping. Details
Only 4 left in stock (more on the way).
Ships from and sold by Amazon.com.
2 new from $48.38

Specifications for this item
Brand Name Whatman
Part Number 10406870
Material Type Cellulose
Number of Items 100
Maximum Temperature 125  Degrees Celsius
Outside Diameter 47  mm
UNSPSC Code 41104921

The liquid is filtered through a membrane. The microorganisms collect on the membrane surface. Th... Read full product description



Whatman Filters

Whatman
View our selection of Whatman Lab Filters, including Filter Paper, Membrane Filters, Syringe Filters, and more.

Product Features

  • Made from mixed cellulose esters; economical
  • Specifically for aqueous solutions
  • Hydrophilic, sterile, individually packed
  • All membrane filters have a high-contrast grid (3.1 mm)
  • For use up to 125 degree C

Product Details

  • Shipping Weight: 4.8 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B005AY1CK8
  • Item model number: 10406870
  • Average Customer Review: 3.5 out of 5 stars  See all reviews (2 customer reviews)
  • Amazon Best Sellers Rank: #65,011 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Product Description

The liquid is filtered through a membrane. The microorganisms collect on the membrane surface. The filter is incubated on a nutrient medium and the individual colonies can then be evaluated. The method is also suitable for large sample volumes and low microorganism counts. The quality control and product design of our membrane filters are strictly controlled and offer users significant advantages. All membranes used for microbiological quality control are tested systematically in order to ensure the same high quality from batch to batch. Parameters tested are bubble point, flow rate, bacterial retention, recovery rate, and sterility. Type STL in dispenser boxes with 100 numbered membrane filters for easy removal and safe handling with the Membrane-Butler (supplied in 4 boxes each with 100 membrane filters).

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Most Helpful Customer Reviews

By CR on September 23, 2013
Verified Purchase
The quality is there and the price is reasonable. It's just these filters are a little hard to place on the filtration base as they are curved and don't lay flat naturally. With a little extra manipulation, they do eventually sit flat once the vacuum gets a hold of them. Once the vacuum is released, they curve up again.
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Verified Purchase
Good quality and well-packaged product at a cheap price. The grids are especially useful when one has to count small specimens e.g. minute plant seeds.
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