934-AH Borosilicate Glass Microfiber, 21mm -150mm

Sterlitech 934-AH Glass Fibre Filters – Industry Standard for Suspended Solids Analysis

Sterlitech 934-AH glass fibre filters are binderless borosilicate microglass filters, designed to meet the strict requirements of Standard Method 2540D and EPA Method 160.2 for suspended solids testing. With a nominal particle retention of 1.5 µm, fine porosity, and fast flow rates, this grade has become the industry standard for water and wastewater analysis.

In addition to environmental testing, 934-AH filters are widely used in cell harvesting workflows and RIA (radioimmunoassay) scintillation counting, where consistency, purity, and low background interference are essential.

Key Features

• Binderless borosilicate glass microfiber for high purity

• Nominal retention: 1.5 µm

• Fine porosity and fast flow rate

• Excellent thermal resistance up to 550°C

• Thickness: 0.43 mm | Weight: 64 g/m² | Flow rate: 47 mL/min/cm²

Common Applications

• Suspended solids testing (SM 2540D, EPA 160.2)

• Cell harvesting and biomass filtration

• RIA scintillation counting

• General environmental water quality analysis

Whatman Equivalent: 934-AH® (trademark of Whatman Inc.)

• Suspended solids testing (SM 2540D, EPA 160.2)

• Cell harvesting and biomass filtration

• RIA scintillation counting

• General environmental water quality analysis

Specification

Grade: 934 AH

Features & Applications: Standard for suspended solids content and related measurements (SM 2540D and EPA Methods 160.2).

Nominal Retention: 1.5 µm

Thickness: 0.43 mm

Weight (g/m²): 64

Water Flow ^a: 47

Max. Op. Temp.: 550°C

Binder: None

Whatman Equivalent: 934-AH

a The time in seconds to filter 100 ml of distilled H20 at 20°C under pressure supplied by a 10 cm water column through a 10 cm² section of filter

HS Code / Commodity Code: 7019905140