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WHA2827047

Whatman® glass microfiber grade 934-AH filter discs 1.5 μm pore size

white, binder free, pre-weighed and washed, total suspended solids analysis, 100 ea, 47 mm diam

Synonym(s):

Glass filters, Whatman microfiber filters

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About This Item

UNSPSC Code:
40161507
NACRES:
NB.24

product name

Whatman® glass microfiber filters, Grade 934-AH®, circles, pre-rinsed and dried, diam. (47 mm), pack of 100 ea

material

circles

description

basis weight, 64 g/m2

sterility

non-sterile

feature

pre-rinsed and dried

packaging

pack of 100 ea

parameter

47 speed (filtration)

diam.

(47 mm)

thickness

435 μm

pore size

1.5 μm retention

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General description

Whatman Grade 934-AH borosilicate glass microfiber filters feature a smooth surface with high retention efficiency and high flow rates for large-volume liquid filtration. Ready-to-use (RTU) formats available for Total Suspended Solid (TSS), Total Dissolved Solids (TDS) and Total Suspended Volatiles (VSS). Whatman Grade 934-AH filters are well suited for large-volume filtration. Applications include cell harvesting, liquid scintillation counting, air pollution monitoring, and water pollution monitoring. Whatman Grade 934-AH binder-free glass microfiber filters are available in a wide range of sizes in circles and sheets.

Application

  • Water pollution monitoring
  • Air pollution monitoring
  • Cell harvesting
  • Liquid scintillation counting

Features and Benefits

Our Whatman filter papers 934-AH family of products come in three different varieties:
  • 934-AH RTU for Suspended and Dissolved Solids—pre-washed, dried, cooled, and weighed filters with certified mass loss between washing and drying steps of the lesser of less than 0.5 mg or 4% in accordance with US EPA Lab Standard Method 2540 parts C and D. (Most filters come weighed to four decimal places, however a version of the 47 mm glass microfiber filter can be measured to five decimal places if needed.)
  • Ready-to-use for Volatiles—pre-washed, pre-weighed and pre-fired at 550°C aligned to US EPA Laboratory Standard Method 2540 parts C, D, and E.
  • RTU Double Weigh—drying, cooling and filter paper weighing steps repeated twice for customers with the highest regulatory concern.
  • Economy versions of 934-AH RTU dissolved, suspended, and volatiles testing filters are also available. These filter papers are pre-washed and dried but not weighed and do not come with barcodes.

Legal Information

934-AH is a registered trademark of Cytiva
Whatman is a registered trademark of Cytiva

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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