Whatman Qualitative Filter Paper Grade 4

Whatman Qualitative Filter Paper Grade 4 Specification

Ash Content
<0.06%

Particle Retention
20-25 m

Flow Rate
Fast

Sterilization Required
No

Maximum Temperature
120C

Compatible Techniques
Gravity filtration

Packaging
100 circles/box

Box Weight
Approximately 0.2 kg

Color
White

Diameter Options
42.5 mm500 mm

Surface Finish
Smooth

Whatman Qualitative Filter Paper Grade 4 Trade Information

Minimum Order Quantity
1 Pack

FOB Port
Jaipur

Payment Terms
Cash in Advance (CID), Cash Advance (CA), Telegraphic Transfer (T/T)

Supply Ability
100 Packs Per Day

Delivery Time
7 Days

Sample Policy
Contact us for information regarding our sample policy

Main Export Market(s)
Australia, South America, Asia, Africa, Central America, Eastern Europe, Middle East, Western Europe, North America

Main Domestic Market
All India

About Whatman Qualitative Filter Paper Grade 4

Pore size	20-25
Thickness	205
Product Code	WHA1004110
packaging	pack of 100
Country of Origin	Made in India
Filter type	Filter paper
Diameter	110MM
Type	Qualitative

Minimum order quantity: 1 Pack

General descriptionWhatman Grade 4 Qualitative Filter Papers are a standard grade, high flow rate filter paper.

Excellent retention: captures coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide. Fast filtration: useful for routine clean-up of biological fluids or organic extracts during analysis

Grade 4 Qualitative Filter Papers (20-25 m particle retention) are available in a variety of sizes and formats including circles, sheets, and rolls. They are also available as prepleated filters, which give improved flow rate and increased loading capacity compared to equivalent flat filters.Features and Benefits

Useful in qualitative analytical separations when Fast flow is required and the collection of fine particles is not critical.
These cellulose filters are used in qualitative analytical techniques to determine and identify materials (e.g., in air pollution monitoring).

Other NotesField of Use : For internal research use only. Products are not intended for diagnostic use or resale.Legal InformationWhatman is a registered trademark of Cytiva

High-Performance Filtration for Demanding Applications

Grade 4 filter papers from Whatman offer reliable and rapid filtration, making them ideal for laboratories and industrial processing where quick throughput is critical. Their broad diameter selection caters to various apparatus sizes, and the fast flow enables efficient particle removal. Trusted by professionals across India, these papers deliver consistent results every time.

Designed for Ease and Consistency

The surface finish of Whatman Grade 4 filter paper ensures a smooth and uniform structure, facilitating easy handling and reproducible filtration outcomes. Their compatibility with gravity filtration techniques allows for seamless integration into standard lab workflows, and the low ash content reduces residue after analysis.

FAQ's of Whatman Qualitative Filter Paper Grade 4:

Q: How should Whatman Qualitative Filter Paper Grade 4 be used in laboratory filtration processes?

A: Simply place the Grade 4 filter paper in the appropriate funnel, ensuring it's the correct diameter for your apparatus. Use it with gravity filtration to rapidly separate coarse particles from liquids, as its fast flow rate supports high sample throughput.

Q: What particle sizes can be retained by Grade 4 filter paper, and what is its typical application?

A: This filter paper retains particles within the 20-25 m range, making it suitable for separating coarse or gelatinous precipitates and for analytical procedures requiring quick filtration.

Q: When is it beneficial to choose Grade 4 filter paper over finer grades?

A: Opt for Grade 4 when you need to filter samples quickly and the removal of larger particulates is sufficient. Its fast flow rate is ideal when processing large liquid volumes or during preliminary sample clarification.

Q: Where are Whatman Grade 4 filter papers commonly supplied and used in India?

A: These filter papers are widely distributed across India by authorized distributors, exporters, manufacturers, suppliers, and traders, and are used in academic, environmental, chemical, and industrial laboratories nationwide.

Q: What is the process for selecting the right diameter for my filtration needs?

A: Identify the diameter of your filtration apparatus and select the filter paper circle size that best fits, from 42.5 mm up to 500 mm. Choosing the correct size ensures a snug fit and optimal filtration.

Q: Does Whatman Grade 4 filter paper require sterilization before use?

A: No, sterilization is not required for this filter paper, making it ready-to-use straight from the box, which helps streamline laboratory workflow and reduces preparation time.

Q: What are the main benefits of using Whatman Grade 4 filter paper in laboratory or industrial settings?

A: Key benefits include rapid filtration, minimal ash content for clean analysis, wide range of sizes, high heat tolerance up to 120C, and smooth, consistent surface for reproducible results, making it a versatile choice for many filtration tasks.

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