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
• UNSPSC Code: 40161507
• NACRES: NB.24

Properties

• 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

Description

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