Quantitative Filter Paper (11cm)

Product item:TP006-3
Product price:US $ 6 / Box
100 pcs/Box
100 boxes/carton

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BASIC INFO

Quantitative Filter paper (Φ11cm)

Unit price: US $ 6 / Box, 100 pcs/Box

Delivery fee is not included

Filter paper has various properties.
The key parameter are wet strength, porosity, particle retention, volumetric flow rate, aperture size, ash content, thickness

Filter paper is the mostly used laboraotry consumable, because even a small piece of filter paper will absorb a significant volume of liquid.

Qualitative filter paper

Qualitative filter paper is used in qualitative analytical techniques to determine materials.
There are different grades of qualitative filter paper according to different pore size.

Quantitative Filter Paper

Quantitative filter paper, also called ash-free filter paper, is used for quantitative and gravimetric analysis.
During the manufacturing, producer use acid to make the paper ash-less and achieve high purity.

Technical details (size: 60x60cm, Φ7cm, Φ9cm, Φ11cm, Φ12.5cm, Φ15cm, Φ18cm)

Product	Model		Max. aperture	Filtration velocity(s)	Ash content(%)	Ration(g/m2)
Qualitative filter paper	101	Fast	20-25 μm	35	≤0.15	80±4
	102	Medium	15-20 μm	35-70	≤0.15	80±4
	103	Slow	10-15 μm	70-140	≤0.15	80±4
Quantitative filter paper	201	Fast	20-25 μm	35	≤0.01	80±4
	202	Medium	15-20 μm	35-70	≤0.01	80±4
	203	Slow	10-15 μm	70-140	≤0.01	80±4

Comparision List (similar, not 100% match)

Canfortlab	101	102	103	201	202	203
Whatman	Grade 4	Grade 1	Grade 2	Grade 41/54/541	Grade 40/43	Grade 42/50/542
Munktell	1288	NO.1	NO.2	388	389	391
Ahlstrom	631	601	642	54/55	N/A	95
Macherey&Nagel	1670	616md	616	640w	640m	640de
MFS/Advantec	1	2	232	5A	7	6/4A