Types	No.3	No.4 (hard type)	No.5A	No.5B	No.5C	No.6	No.7	GFP (GA-200)	SS-47 LS-100
Pore sizes (µ)	5	1	7	4	1	3	4	0.8	0.5
Speed	Bit first	Very slow	First	Bit first	Slow	Bit slow	Bit first	First	Very late
Herzberg Method*	120	1200	55	195	570	300	200	0.6	0.24
Thickness (mm)	0.23	0.17	0.22	0.22	0.21	0.19	0.19
Ash Content (g) (φ5.5cm)	0.0001	0.00006	0.00004	0.00004	0.00004	0.00002	0.000007
Uses	Soil Cement Fertilizer Minerals quantitative analysis	Strong acid Strong alcaline	Rough filtration	Normal filtration	Fine filtration	Normal filtration	Normal filtration	Needing chemical stability	Emulsion samples
Characteristics	Thick paper Speedy filtering	Tough	Speedy filtering	Slow	On holding fine perticles	Bit slow	Thin paper Low ash content	High volume sediments	Conteins little organic binder

*Herzberg Method flow times is the time in seconds required to filter 100mL of distilled water at 20ºC under pressure supplied by a 10cm water column through a 10cm² section of filter paper.
This chart information is from catalogs by Toyo Roshi Kaisha, Ltd.,　Azumi Filter Paper Co., Ltd..