Test methods


	Research Laboratory


	Test Methods


	Test methods Research goals Equipment Research Award History Contact


	made in Germany


	Test methods applied by Clear & Clean

Since 2007 a handbook of the Clear & Clean test methods is available and can be ordered from us free of charge.

Physical data of the materials

Thickness
Surface mass scale
Maximum tensile strength
Maximum tensile strength – stretching
Surface roughness
Chemical stability




	Thickness measurement




	Microbalance




	Topography measurement


	Tests of the dynamic behavior of cleaning cloths


	Labuda particle attrition test Labuda cleaning efficiency test Labuda fluid residue test


	Labuda Rotation Wiping Simulator Mark I



	Particle attrition


	Labuda Linear Wiping Simulator Mark I



	Cleaning effectivity


	Labuda Linear Wiping Simulator Mark II



	Liquid residue after wet wiping


	Tests of the fluid absorption of cleaning wipers


	Capillary fluid absorption Total fluid absorption Measurement of drop absorption time

Tests of surface cleanliness (all products)

Surface cleanliness of papers, immersion method + particle count
Extractable residues according to Soxhlet
Drop contour analysis / contact angle measurement
Surfactant release, tensiometric




	Tensiometer measurement of the surface tension of fluids




	Capillary fluid absorption




	Measurement of drop absorption time


	Tests of static electricity


	Voltage decay after corona charging Triboelectricity measured by the Ehrler drop slide Triboelectricity in the printer feeder (cleanroom paper)




	Decay behavior




	Ehrler Drop slide


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