Whatman Grade-1 Quantitative Filter Paper 11 Micron 100 pcs 12.5cm

Description

Product Overview

The Whatman Grade-1 filter paper is a premium-grade quantitative filter designed to meet the rigorous demands of modern laboratory environments. Manufactured by Whatman, a trusted name in analytical filtration, this paper features an 11 micron pore size that delivers consistent flow rates and high retention efficiency for a wide variety of particulate and soluble substances. Each sheet measures 12.5 cm in diameter, providing a generous surface area that supports both small‑scale analytical procedures and larger batch processes. The pack contains 100 sheets, ensuring that laboratories have a reliable stock of filter media for routine analyses, method development, and quality control testing. The paper is produced using a uniform fiber network that minimizes variability, allowing scientists to achieve reproducible results across multiple experiments. Its robust construction resists tearing during handling, while its smooth surface facilitates easy transfer of filtrates, reducing the risk of sample loss or contamination.

Usage

Designed for versatility, the Grade-1 filter paper excels in applications ranging from food and beverage testing to agricultural residue analysis and environmental monitoring. In food industry laboratories, it is frequently employed to clarify juices, dairy products, and liquid extracts, ensuring that downstream analytical instruments receive clear, particle‑free samples. Agricultural researchers rely on this filter to separate soil suspensions and plant extracts, enabling accurate determination of nutrient content, pesticide residues, and microbial activity. Air‑pollution monitoring stations use the paper to capture particulate matter from air samples, supporting studies on atmospheric composition and health impact assessments. Additionally, the filter paper serves as an excellent teaching tool in educational settings, where it helps illustrate fundamental principles of solid‑liquid separation, filtration kinetics, and quantitative analysis. Its compatibility with standard laboratory equipment, such as funnel assemblies, vacuum filtration units, and filter holders, makes integration into existing workflows seamless.

Why Choose Us

Choosing the Whatman Grade-1 filter paper means selecting a product backed by decades of scientific expertise and a commitment to quality assurance. Each batch undergoes stringent testing for pore size uniformity, tensile strength, and chemical resistance, guaranteeing that the paper performs consistently under diverse experimental conditions. Whatman’s manufacturing process incorporates controlled fiber alignment and precise drying techniques, resulting in a filter media that delivers predictable flow characteristics and minimal background interference. Customers benefit from comprehensive technical support, including detailed product datasheets, application notes, and responsive assistance from experienced filtration specialists. The brand’s global distribution network ensures rapid delivery and reliable availability, reducing downtime for critical laboratory operations. Moreover, the environmentally responsible production methods employed by Whatman align with sustainability goals, offering a filter solution that is both high‑performance and eco‑friendly.

Key Features

• Uniform 11 micron pore size delivers precise quantitative filtration for reproducible results.
• Large 12.5 cm diameter sheets provide ample surface area for both small‑scale and high‑throughput applications.
• Pack of 100 sheets ensures a consistent supply, reducing the need for frequent re‑ordering.
• Durable fiber network resists tearing and supports easy handling during setup and disposal.
• Comprehensive technical support and after‑sales service from Whatman’s expert team.

FAQ

What types of samples can be filtered with Grade‑1 paper?

Grade‑1 filter paper is suitable for a broad range of liquid samples, including aqueous solutions, food extracts, agricultural suspensions, and environmental water samples. It effectively removes fine particulates while allowing soluble analytes to pass through for downstream analysis.

Can the filter paper be used with vacuum filtration systems?

Yes, the 12.5 cm sheets are compatible with standard vacuum filtration apparatuses, filter holders, and funnel assemblies. The paper’s structural integrity ensures it maintains shape under reduced pressure, providing reliable filtration performance.

How does the 11 micron pore size affect filtration speed?

The 11 micron pore size offers a balanced flow rate that is fast enough for routine laboratory work yet fine enough to retain small particles. This enables efficient sample processing without compromising the accuracy of quantitative measurements.

Is the filter paper suitable for educational laboratory exercises?

Absolutely. Its consistent performance and easy handling make it an ideal teaching aid for demonstrating solid‑liquid separation, filtration techniques, and quantitative analysis concepts in classroom settings.

What support does Whatman provide if I encounter issues?

Whatman offers detailed product documentation, application guidance, and direct access to technical experts who can assist with troubleshooting, method development, and optimization of filtration protocols.