Chromatographic apparatus for scientific or laboratory use; Chromatography instruments for scientific or laboratory use; Laboratory apparatus for scientific research; Lasers for scientific use; Scientific apparatus and instruments; Scientific equipment; Microscopes; Electron microscopes; Spectroscopes; Imaging apparatus; Rheometers; Particle classifying apparatus; Particle detecting apparatus; Particle detectors; Image scanners; Laboratory apparatus (other than for medical use); Laboratory articles (other than for medical use); Image analysing apparatus; Image analysing instruments; Tensiometers; Measuring devices (other than for medical use); Measuring devices, electric; Measuring instruments; Surface measuring apparatus; Diffraction apparatus (microscopy); Particle analyzers, other than for medical use; Lasers, not for medical purposes