Thermo Scientific™ Nalgene™ Water Quality Membrane

Cellulose nitrate membrane filters have official certification for water quality work

Brand: Thermo Scientific™

Manufacturer Part Number: DS0205-4045


UNSPSC: 41104921

Code: 54

Additional Details:
Additional Details: Weight: 0.12000kg

Product Code. 10112211

Quantity Price
1 £ 93.85 / Pack of 100
In Stock 29
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Description and Specification


Diameter (Metric) 4.7cm
Pore Size 0.45μm
Color (Overall) White
Product Type Membrane
Color Code White

Manufactured for the bacteriological analysis of potable, waste and natural waters in accordance with the membrane filtration procedures referenced in Standard Methods for the Examination of Water and Wastewater, current edition.

  • Filters and ink are nontoxic, free of bacterial growth inhibiting or stimulating substances
  • White with green grid and sterile
  • Membranes wet uniformly within 15 seconds with no dry spots when floated on reagent grade water
  • Filter diameter is 47mm; mean pore diameter is 0.45 μm
  • Membrane flow is 55 ml/min/cm2 at 25°C, differential pressure of 93kPa
  • pH of filtrate: ≤7.5
  • Recovery using Escherichia coli met or exceeded 90% in comparison to a pour plate