Whatman 1827-021-DS Glass Microfiber Binder Free Filter, 1.5 Micron, 3.7 s/100mL Flow Rate, Grade 934-AH, 21 mm Diameter (Pack of 100)

Description

Product Overview

The Whatman 1827-021-DS glass microfiber filter is engineered for laboratories that demand reliable, high‑purity filtration. Constructed from premium glass microfiber material, the filter offers a nominal pore size of 1.5 µm while remaining completely binder‑free, eliminating the risk of contaminant leaching that can compromise sensitive analyses. The filter’s Grade 934‑AH designation reflects a rigorous quality standard, ensuring uniform pore distribution and mechanical strength. With a compact 21 mm diameter, each filter fits standard laboratory housings and can be easily integrated into existing workflows. The pack of 100 filters provides a cost‑effective solution for high‑throughput environments, reducing the need for frequent re‑ordering and minimizing downtime. Flow performance is impressive, delivering a rate of 3.7 seconds per 100 mL of fluid, which balances speed with the precision required for critical applications such as chromatography, sample preparation, and microbiological testing.

Usage

Designed for a broad spectrum of laboratory settings, this filter excels in applications where sample integrity is paramount. Researchers in analytical chemistry, biochemistry, and environmental testing rely on the 1.5 µm pore size to remove particulates, microorganisms, and other contaminants without retaining valuable analytes. The binder‑free construction makes the filter suitable for use with aggressive solvents, acids, and bases, ensuring that no residual chemicals interfere with downstream assays. Its robust flow rate supports rapid processing of large sample volumes, making it ideal for high‑throughput screening, quality‑control testing, and routine laboratory maintenance. The 21 mm format aligns with common filter holders, allowing seamless integration into vacuum filtration setups, syringe filters, and automated filtration systems. Whether you are preparing samples for HPLC, conducting sterility tests, or purifying extracts, the Whatman filter provides consistent, reproducible results that meet stringent laboratory standards.

Why Choose Us

Choosing the Whatman 1827-021-DS filter means selecting a product backed by decades of expertise in filtration technology. Whatman, a trusted name in laboratory consumables, adheres to rigorous manufacturing protocols that guarantee each filter meets exacting specifications. The binder‑free glass microfiber matrix is produced under controlled conditions to prevent variability, delivering uniform performance batch after batch. Quality assurance includes comprehensive testing for pore size distribution, flow rate consistency, and chemical compatibility, providing confidence that the filter will perform as advertised. In addition, the product is manufactured in Canada, adhering to strict environmental and safety regulations, which further underscores its reliability. Customers benefit from responsive technical support, detailed product documentation, and a commitment to continuous improvement, ensuring that any questions or concerns are addressed promptly and effectively.

Key Features

• Precise 1.5 µm binder‑free filtration for ultra‑clean sample preparation
• High flow rate of 3.7 seconds per 100 mL, accelerating laboratory workflows
• Grade 934‑AH quality ensures uniform pore structure and mechanical durability
• Compatible with a wide range of solvents, acids, and bases for versatile use
• Comprehensive customer support and technical assistance for seamless integration

FAQ

What does binder‑free mean and why is it important?

Binder‑free indicates that the filter media contains no polymeric binders that could leach into the sample. This is crucial for applications where even trace contaminants can affect analytical results, such as trace metal analysis or sensitive bioassays.

Can this filter be used with aggressive chemicals?

Yes. The glass microfiber material is chemically inert and resistant to most acids, bases, and organic solvents, making it suitable for a variety of harsh chemical environments without compromising filter integrity.

What is the significance of Grade 934‑AH?

Grade 934‑AH is a quality classification that denotes a high level of consistency in pore size, flow characteristics, and mechanical strength. Filters meeting this grade are tested to ensure they meet strict performance criteria, providing reliable and repeatable results.

How many filters are included in the pack?

The product is supplied as a pack of 100 individual 21 mm diameter filters, offering a convenient bulk quantity for laboratories with high‑throughput filtration needs.

Is the filter compatible with standard laboratory filter holders?

Yes. The 21 mm diameter is a common size for many laboratory filtration devices, allowing the filter to be used directly in standard vacuum manifolds, syringe filters, and automated filtration systems.