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Whatman MembraClear Cellulose Ester Membrane Filters, GE Healthcare

Supplier: Whatman (GE Healthcare)
Whatman™
7141-025 7141-047
These mixed cellulose ester membrane filters are designed for asbestos sampling using the membrane filter method for phase contrast microscopy. Asbestos sampling isolates these fibers from circulating air to determine concentrations.

  • Designed for use with the 'hot block method'
  • White with black grid for high contrast during asbestos testing using microscopy
  • Becomes transparent with acetone vapor treatment, distinguishing fibers from crystalline artifacts




 

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Description Size Material Diameter Color Pore Size Supplier No. VWR Catalog Number Unit Price Quantity
MembraClear Mixed Cellulose Ester Membrane, 25 mm circle 100 Pieces Mixed cellulose ester 25 mm White with black grid 0.8 µm 7141-025 76200-226 Pack of 25 (100mm) Retrieving Restricted
MembraClear Mixed Cellulose Ester Membrane, 47 mm circle 100 Pieces Mixed cellulose ester 47 mm White with black grid 0.8 µm 7141-047 76200-228 Pack of 47 (100mm) Retrieving Restricted
restricted In order to process your orders without delay, we request that you provide the required business documentation to purchase this product.

To order chemicals, medical devices, or other restricted products please provide identification that includes your business name and shipping address via email CMD_NA@vwr.com or fax 484.881.5997 referencing your VWR account number . Acceptable forms of identification are:

  • State issued document with your organization's Federal Tax ID Number
  • State issued document with your organization's Resale Tax ID Number
  • City or County issued Business License
  • State Department of Health Services License
  • Any other ID issued by the State that includes the business name and address

* Please note if your account is within the State of California two of these pieces of identification will be required.
VWR will not lift restrictions for residential shipping addresses.

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