General purpose filter papers

Grade 121

Same use as grade 122, but with slowest filtration velocity.
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Grade 122

Filter paper used for all general works in laboratories. Very fast filtration velocity.
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Grade 600

Economical filter paper used in schools and as bench protective paper.
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Grade 601

Filter paper used in analytical works in laboratories. Medium filtration velocity
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Grade 603 / grade 607

Thin filter paper. Fast filtration velocity..
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Applications

General works

Hospitals

Research laboratories

Schools

Chemical industries, pharmaceutical, cosmetic, food and beverage

Technical specifications
	Weight	Thickness	Pore size	Filtration vel.	Burst strength
Grade	g/m²	mm	µm	sec*	kg/cm²
121	73	0,16	6-10	90	1,85
122	73	0,17	17-30	22	1,25
600	64	0,15	10-20	50	1,45
601	73	0,16	5-13	88	1,95
603	60	0,14	35-65	25	1,05
607	50	0,12	17-30	22	0,25
*according to DIN 53137