Whatman 1001-185 Filter Circles, 185mm Dia, Grade 1, 100/pk (PN:1001-185)

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Authorized Whatman DistributorSKU: 1001-185

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Sale price$41.40 Regular price$45.67

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Description

GR 1 18.5CM 100/PK
Qualitative Filter Papers - Standard Grades Grade 1 circles, 185 mm, 100/pk, The most widely used filter paper for routine applications with medium retention and flow rate.

Click here for Whatman 1001-824 Filter Sheets, 75 x 100mm, Grade 1, 500/pk (PN:1001-8)

Specifications

air-flow-rate 10.5 s/100 ml/in2
brand Whatman
custom-stock-status-message Same Day Shipping
diameter-cm 18.5
diameter-mm 185
grade Grade 1
hide-default-stock-status Yes
iw-tremont-equivalent CFP1-185
lead-time 5
list-price 45.67
manufacturer-part-number 1001-185
model Grade 1
part-number 1001-185
quantity-per-pack 100

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Net 30 Terms

We offer Net 30 terms for qualified business customers, allowing you to receive your order now and pay within 30 days of the invoice date.

Frequently Asked Questions

Whatman Grade 1 is the most widely used qualitative filter paper for routine laboratory filtration. It is ideal for clarifying liquids, separating precipitates, and general-purpose analysis across industries such as environmental, food, and educational labs.

This filter paper has a typical particle retention of about 11 microns, making it suitable for capturing medium-sized particles while maintaining efficient filtration speed.

Grade 1 offers a medium filtration speed (~150 seconds Herzberg flow rate), providing a balanced combination of good retention and practical throughput for everyday lab applications.

The 185 mm diameter is designed for larger filtration setups, such as:

Large Büchner funnel filtration
Bulk sample preparation
Environmental and industrial testing

This size is ideal when working with higher liquid volumes or larger sample batches.

These filters are made from high-quality cellulose fibers, providing consistent performance, low ash content, and reliable qualitative results in standard laboratory procedures.

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