Description

Qualitative 11 Micron Filter Paper (QUAL-11UM) | USA Lab

Our Qualitative Filter Paper works great for everyday filtering with a low ash content of ≤0.1%. Don’t break the bank with expensive filters—QUAL-11UM delivers dependable performance at an affordable price for routine lab and process filtration.

With 11µm particle retention and a medium filtration speed, QUAL-11UM covers most laboratory applications and is commonly used for liquid clarification and qualitative analysis of precipitates (including lead sulfate, calcium oxalate, and calcium carbonate). Pre-cut circles make setup quick and consistent, and each option is supplied in a convenient pack of 100.

Choose the diameter you need and keep your filtration workflow moving.

Filter paper is not eligible for return/refund. All sales are final.

600mm Filter paper comes in a pack of 200pcs.

Qualitative 11µm Retention Medium Speed ≤0.1% Ash Content

Particle Retention: 11µm (micron) — moderate retention for daily filtration

Filtration Speed: Medium — balanced flow for clarification and separation

Ash Content: ≤0.1% — low residue for cleaner qualitative results

Why buy from USA Lab

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Engineers & technicians on staff.

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Tested and trusted products.

Fast Fulfillment
Nationwide 1-2 day shipping.

Warranty & Parts
US-based service & spares.

Why this qualitative filter paper?

Made for liquid clarification — commonly used to clarify liquids across routine laboratory workflows.
Moderate retention & flow — 11µm retention with a medium filtration speed for everyday filtration.
Supports qualitative precipitate work — traditionally used for qualitative analysis and separation of precipitates such as lead sulfate and calcium oxalate.
Low ash for cleaner results — ≤0.1% ash content helps minimize residue after filtration.
Convenient pre-cut circles — easy to use, consistent sizing, and supplied in packs of 100.

Talk to an expert

Get help selecting the right diameter and filtration grade for your application.

Call 734-855-4890

Technical Specifications

Model	Qualitative 11 Micron Filter Paper (QUAL-11UM)
Classification	Qualitative
Particle Retention	11µm (micron)
Grade	BIO-1 \| Whatman Grade 1
Filtration Speed	Medium
Product Appearance	Smooth
Ash Content	≤0.1%
Typical Thickness	172µm
Basis Weight	84 g/m²
Wet Burst, mm Water	>140
Quantity	Pack of 100 (600MM is a pack of 200)
Sizes	5 cm, 7 cm, 9 cm, 11 cm, 12.5 cm, 15 cm, 18 cm, 22 cm, 30 cm, 35 cm, 45 cm, 60 cm
Refund Policy	Not Eligible for Return/Refund

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Custom Solutions

Tailored tanks, skids, and integration help.

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Talk to Sales

We’ll help spec the right filter size for your workflow.

Call 734-855-4890 Email Sales/Support

FAQ

What is QUAL-11UM Qualitative 11 Micron Filter Paper used for?

QUAL-11UM Qualitative 11 Micron Filter Paper covers most laboratory applications and is often used for liquid clarification and daily filtration. It is also traditionally used for qualitative analysis and separation of precipitates such as lead sulfate, calcium oxalate, and calcium carbonate.

What is the filtration speed of Qualitative 11 Micron Filter Paper (QUAL-11UM)?

Qualitative 11 Micron Filter Paper (QUAL-11UM) has a medium filtration speed, providing a balanced flow rate and moderate retention that is commonly used for 11µm daily filtration and liquid clarification.

What are the advantages of QUAL-11UM Qualitative 11 Micron Filter Paper?

QUAL-11UM Qualitative 11 Micron Filter Paper is manufactured for consistent performance and convenience. It has passed ISO9001 and CE certifications, features low ash content (≤0.1%), offers high purity and reliable filtration results, and comes in easy-to-use pre-cut circles.

What sizes are available for Qualitative 11 Micron Filter Paper (QUAL-11UM)?

Qualitative 11 Micron Filter Paper (QUAL-11UM) is available in multiple pre-cut diameters including 5 cm, 7 cm, 9 cm, 11 cm, 12.5 cm, 15 cm, 18 cm, 22 cm, 30 cm, 35 cm, 45 cm, and 60 cm. Each option is supplied in a pack of 100.

Important Shipping Notice!

DISCLAIMER:

All items are carefully packaged to ensure safe delivery. In the rare event that your item arrives damaged, please notify us within 3 days of receipt. We will promptly provide a replacement or issue a refund.

Please note that any damage occurring after delivery is not covered under warranty. We appreciate your understanding and your trust in our products.