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Whatman  |  SKU: 367807

Whatman No. 40 Quantitative Ashless Circles 185mm

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Whatman No. 40 Quantitative Ashless Circles 185mm is backordered and will ship as soon as it is back in stock.

Description

Whatman No. 40 is a medium-fast quantitative ashless filter paper with 8µm particle retention and less than 0.01% ash content, making it suitable for gravimetric analysis where the filter is ignited. Used for the collection of medium to coarse precipitates in standard gravimetric procedures across environmental, geological, and industrial quality-control laboratories. A common choice when No. 42 is too slow or fine retention is not critical.

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Whatman

Whatman No. 40 Quantitative Ashless Circles 185mm

Please sign in to request a quote.

Whatman No. 40 is a medium-fast quantitative ashless filter paper with 8µm particle retention and less than 0.01% ash content, making it suitable for gravimetric analysis where the filter is ignited. Used for the collection of medium to coarse precipitates in standard gravimetric procedures across environmental, geological, and industrial quality-control laboratories. A common choice when No. 42 is too slow or fine retention is not critical.

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