Ash Free Filter Paper – Lab qualitative filter paper – Great Wall

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Ash Free Filter Paper – Lab qualitative filter paper – Great Wall Detail:

Lab qualitative filter paper Specifications

CP1002 qualitative filter papers are made of 100 % linter cotton, manufactured by modern paper-making technology. This kind of filter paper is generally used for qualitative analysis and solid-liquid separation.

Grade	Speed	Particle retention(μm)	Flow rate①s	Thickness (mm)	Basis weight (g/m2)	Wet Burst② mm H2O	Ash< %
1	Medium	11	40-50	0.18	87	260	0.15
2	Medium	8	55-60	0.21	103	290	0.15
3	Medium-slow	6	80-90	0.38	187	350	0.15
4	Very fast	20-25	15-20	0.21	97	260	0.15
5	Very slow	2.5	250-300	0.19	99	350	0.15
6	slow	3	90-100	0.18	102	350	0.15

① Filtration speed is the time for filtering 10ml（23±1℃）distillated water through 10cm2 filter paper.

② Wet Bursting Strength is measured by wet bursting strength instrument.

Ordering information

Sheets and rolls with custom-made size are available.

Grade	Size(cm)	Packing
1,2,3,4,5,6	60×60 46X57	60×60
	Φ7、Φ9、Φ11、Φ12.5、Φ15、Φ18、Φ18.5、Φ24	Sheet :100sheets/pack, 10packs/CTN
		Circle :100circles/pack, 50packs/CTN

Lab qualitative filter paper Applications

1. Qualitative analysis pretreatment;
2. Filtration of precipitates, such as ferric hydroxide, lead sulphate, calcium carbonate;
3.Seed testing and soil analysis.

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