Description

Whatman Filter Papers 90 mm Grade-1 Qualitative – Technical Overview

The Whatman Filter Papers 90 mm Grade-1 Qualitative is the global standard for routine laboratory applications requiring medium flow rates and high-efficiency particle retention. Manufactured by Cytiva (formerly GE Healthcare), the Whatman 1001-090 model features a 90mm diameter and is categorized as a Grade 1 cellulose filter paper. This specific grade is the most widely used qualitative filter paper in research, industrial testing, and educational laboratories. It offers a nominal particle retention rating of 11 $\mu$m, making it ideal for liquid clarification and separating precipitates from solutions.

The Whatman Grade 1 Filter Paper 90mm is engineered from high-quality cotton linters, ensuring high alpha-cellulose content. This composition provides chemical resistance and structural integrity during filtration processes. Whether you are performing soil analysis or seed testing, this 90mm qualitative filter paper delivers consistent results. In Bangladesh, laboratory professionals rely on this standard grade qualitative filter paper for its reliability and precision in gravity filtration.

Key Specifications of Whatman 1001-090 Filter Paper

Understanding the technical data sheet is essential for selecting the correct scientific filtration media. The Whatman Filter Paper Grade 1 9cm is characterized by its smooth surface and medium porosity. Below are the primary technical specifications:

• Diameter: 90 mm (9 cm)

• Grade: Grade 1 Qualitative

• Pore Size: 11 $\mu$m (Nominal)

• Thickness: 180 $\mu$m

• Basis Weight: 87 g/m²

• Filtration Speed: 150 s (Herzberg)

• Material: High-quality cellulose

These specifications ensure that the Whatman 90mm filter paper 100 pcs pack meets the rigorous demands of chemical analysis and qualitative separations. The medium flow rate allows for efficient processing without sacrificing the clarity of the filtrate.

Applications of Whatman Grade 1 90mm in Laboratory Testing

The versatility of the Whatman Filter Paper for Laboratory Use makes it a staple in various scientific sectors. In Bangladesh, it is extensively used in environmental monitoring and food quality control.

1. Soil Analysis and Environmental Testing

Environmental labs use the 90mm diameter qualitative filters for soil analysis to separate extracts from soil samples. This is crucial for determining nutrient content and pH levels. The 11-micron retention ensures that fine soil particles do not interfere with downstream chemical tests.

2. Food and Beverage Quality Control

In the food industry, Whatman Grade 1 filter paper specifications 11 micron are perfect for clarifying liquids. It is used to remove solid impurities from juice samples or to extract fats from food products during standardized testing protocols.

3. Agricultural Seed Testing

Agricultural scientists utilize these 9cm filter paper discs for seed germination tests. The high purity of the cellulose ensures that no chemical contaminants interfere with the biological growth of the seeds.

4. General Liquid Clarification

As the best qualitative filter paper for clarifying liquids, Grade 1 is used in routine chemistry for separating lead sulfate, calcium oxalate, and magnesium ammonium phosphate. It acts as a primary barrier in various analytical workflows.

Why Choose Cytiva Whatman Grade 1 90mm?

When searching for a laboratory filter paper importer Bangladesh, it is vital to prioritize genuine products. Cytiva Whatman Grade 1 90mm is recognized for its consistency. Each batch undergoes strict quality control to ensure uniform thickness and pore distribution. This uniformity prevents bypass during filtration, which is a common issue with low-quality cellulose filter paper.

Using the Whatman 1001-090 filter paper technical data sheet as a guide, researchers can predict filtration times and retention efficiency accurately. This predictability is essential for replicating experiments and maintaining laboratory standards. Furthermore, these 90mm circular filter paper Whatman discs are compatible with standard funnels and filtration apparatus found in most Dhaka-based laboratories.

How to Use Whatman Grade 1 Filter Paper in Lab

Proper technique is required to maximize the efficiency of standard grade qualitative filter paper. For gravity filtration, the Whatman Filter Paper Grade 1 9cm should be folded twice into a quadrant shape. This creates a cone that fits securely into a glass or plastic funnel.

1. Preparation: Select the appropriate funnel size for the 90mm filter paper.

2. Folding: Fold the circle in half, then into quarters.

3. Seating: Place the cone in the funnel and dampen it with a small amount of distilled water or the solvent being used. This ensures the paper adheres to the funnel walls.

4. Filtration: Pour the liquid slowly into the center of the cone. Do not overfill the filter paper beyond its top edge.

By following these steps, you ensure the 90mm qualitative filter paper performs at its maximum flow rate while retaining all necessary particles.

Whatman Filter Paper 90mm Price in Bangladesh

The Whatman filter paper 90mm price in BD varies based on quantity and supplier authenticity. Buyers should be cautious of counterfeit products that may look similar but fail to provide the required 11-micron retention. The Whatman Grade 1 90mm price in Bangladesh is competitive when purchased through authorized channels.

For those looking for a Whatman 90mm filter paper price list, it is best to contact a direct Whatman filter paper dealer in Bangladesh. Buying in bulk or wholesale can significantly reduce the cost per pack, making it more affordable for large-scale industrial testing or university research departments.

Buying Genuine Whatman Filter Paper 90mm Online in Bangladesh

In the digital age, many labs prefer to buy Whatman Filter Paper 90mm online Bangladesh. Online procurement allows for easy comparison of technical specifications and pricing. When searching for a Whatman Filter Paper 90mm supplier in Dhaka, look for companies with a proven track record in the scientific community.

A reliable wholesale Whatman Grade 1 Filter Paper BD provider will offer the Whatman 1001-090 with original packaging and batch certificates. This ensures that the laboratory consumables you receive are up to international standards for chemical analysis filter paper.

The Importance of Qualitative Cellulose Filter Paper

Qualitative cellulose filter paper is different from ashless quantitative grades. While quantitative papers are used for gravimetric analysis where the filter is burned, qualitative grades like the Whatman Grade 1 are intended for identifying substances based on their physical or chemical properties. As a precision measuring instrument in the filtration world, the 90mm circular filter paper provides the necessary surface area for efficient routine separations.

Whether you are a laboratory equipment seller or a researcher, understanding the nuances between filter grades is critical. The standard grade qualitative filter paper remains the most cost-effective solution for non-critical gravimetric tasks and general laboratory cleaning or separation.

Sourcing from a Trusted Laboratory Equipment Supplier

Selecting the right laboratory equipment supplier is the most important step in procurement. A trusted supplier ensures that the Whatman Filter Papers 90 mm Grade-1 Qualitative are stored in a climate-controlled environment to prevent moisture absorption, which can degrade the cellulose fibers.

When you search for “Where to buy Whatman Grade 1 90mm in Bangladesh,” prioritize suppliers who understand the technical requirements of industrial testing equipment and quality control tools. A specialized scientific filtration media provider can also offer advice on whether Grade 1 or a different porosity, such as Grade 4 or Grade 5, is better suited for your specific application.