Whatman 1003-070 Quantitative Filter Paper Circles, 6 Micron, 26 s/100mL/sq inch Flow Rate, Grade 3, 70mm Diameter (Pack of 100)

Description

Product Overview

The Whatman 1003-070 quantitative filter paper circles are engineered to meet the demanding standards of modern laboratory filtration. Each circle measures 70 mm in diameter and features a uniform 6 micron pore size, delivering precise particle retention while maintaining a high flow rate of 26 s/100 mL per square inch. Constructed from Grade 3 Whatman filter paper, these circles possess double the thickness of Grade 1, providing enhanced wet strength and an increased loading capacity that is essential for high‑volume filtration tasks. The paper’s fine fiber network ensures consistent performance across a wide range of analytical techniques, from gravimetric analysis to colorimetric assays. Packaged in a convenient box of 100 circles, the product offers both reliability and value for laboratories that require a steady supply of high‑quality filter media.

Usage

These filter paper circles are ideally suited for use in Büchner funnels, vacuum filtration setups, and other laboratory filtration apparatuses where precise particle separation is critical. Their robust Grade 3 construction allows them to withstand the mechanical stresses of rapid vacuum application without tearing, making them perfect for both routine sample preparation and more demanding analytical procedures. Researchers in chemistry, biochemistry, environmental testing, and pharmaceutical development will find the 6 micron pore size optimal for retaining fine particulates while allowing clear filtrates to pass quickly. The 70 mm diameter fits standard funnel sizes, ensuring a seamless integration into existing workflows. Additionally, the high loading capacity reduces the need for frequent filter changes, improving efficiency and reducing consumable costs in high‑throughput environments.

Why Choose Us

Choosing the Whatman 1003-070 filter paper circles means selecting a product backed by decades of scientific expertise and rigorous quality control. Whatman, a trusted name in laboratory filtration, manufactures each circle under controlled conditions to guarantee uniform pore size, thickness, and wet strength. The Grade 3 classification provides a balance of durability and fine particle retention, making it a versatile choice for a broad spectrum of analytical methods. Our packaging of 100 circles ensures that laboratories have a reliable inventory, minimizing downtime caused by stockouts. Moreover, we stand behind our product with responsive customer support, offering technical assistance and guidance to help you achieve optimal filtration results. When you purchase from us, you receive not only a premium filter media but also a commitment to scientific excellence and service.

Key Features

• Uniform 6 micron pore size ensures consistent particle retention across all samples.
• Grade 3 thickness provides double the strength of standard Grade 1 paper, reducing tear risk.
• High wet strength allows reliable use under vacuum without compromising filter integrity.
• 70 mm diameter fits standard laboratory funnels, simplifying setup and replacement.
• Dedicated customer support offers technical advice and rapid assistance for any filtration queries.

FAQ

What types of analyses are best suited for this filter paper?

The 6 micron pore size and Grade 3 thickness make these circles ideal for gravimetric analysis, precipitation studies, and any procedure requiring fine particulate capture while maintaining a reasonable flow rate. They perform well in both qualitative and quantitative laboratory methods.

Can these circles be used with high‑vacuum filtration systems?

Yes. The enhanced wet strength of Grade 3 paper allows the circles to withstand strong vacuum pressures without tearing, making them suitable for high‑vacuum applications such as rapid sample preparation and large‑volume filtrations.

How does the loading capacity of Grade 3 compare to lower grades?

Grade 3 filter paper offers roughly double the loading capacity of Grade 1, meaning it can retain more material before becoming saturated. This reduces the frequency of filter changes and improves overall workflow efficiency.

Is the packaging designed for easy inventory management?

Each box contains 100 pre‑cut circles, clearly labeled with product details and batch information. The compact packaging dimensions (2.99 × 2.91 × 1.77 inches) allow for convenient storage in standard laboratory cabinets, helping you keep track of stock levels effortlessly.

What support is available if I encounter issues with the filter paper?

Our technical support team is available to answer questions about filter selection, usage protocols, and troubleshooting. We provide guidance on optimal filtration conditions and can assist with any performance concerns you may have.