Laboratory Paper
Whatman Filter Paper No.542, Qualitative, Hardened Ashless
Whatman Filter Paper No.542, Qualitative, Hardened Ashless

 

Whatman Filter Paper No.542, Qualitative, Hardened Ashless

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Category: Laboratory Paper Available
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Description

Filter Paper, No.542, Qualitative, Hardened Ashless

Description

General description
These are the supreme hardened ashless quantitative filter papers featuring high wet strength and chemical resistance. These papers are acid hardened, which reduces ash to an extremely low level. Their tough surfaces make them suitable for a wide range of critical analytical filtration operations. Each grade offers a convenient combination of filtration speed and particle retention.

Grade 542: 2.7 μm (slow filter paper)
High retention of fine particles under demanding conditions. Slow flow rate. Very hard and strong with excellent chemical resistance. Often used in gravimetric metal determinations.

 

Technical Specification
Brand Product code Diameter ( cm ) PACKING QTY
Whatman 154-2070 7.0 100/ Box
Whatman 154-2090 9.0 100/ Box
Whatman 154-2110 11.0 100/ Box
Whatman 154-2125 12.5 100/ Box
Whatman 154-2150 15.0 100/ Box
Whatman 154-2185 18.5 100/ Box

 

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