Whatman

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Whatman Quantitative Filter Papers, Grade 40, 12.5cm, 100/pk

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$99.95

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MFR:: 09-845E
Medex SKU:: WTM-1440-125
Packing Info:: 100/pk
Usually Ships:: 3 - 5 Business Days
Freight Quote Button:: False

Description

Features of the Whatman Quantitative Filter Papers:

Suitable for gravity or low-suction filtration.

Acid washed: Ash content not exceeding 0.007%.

Meet ASTM "ash content per circle" requirements.

Manufactured with demineralized water for high purity.

Limited wet strength, use care to avoid rupturing.

Particle Retention: >8µm.

Porosity: Medium.

Filtration Speed: AASTM, 75 seconds; Herzberg, 340 seconds.

Surface: Smooth.

Applications: Widely used, general-purpose gravimetric grade. Medium crystalline precipitates: calcium oxalate, well-digested barium. Normal loading; limited wet strength.

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