SERVICES PERTAINING TO THE MANUFACTURE TO CUSTOMER SPECIFICATIONS OF INSTRUMENTS AND DEVICES FOR DETERMINING SURFACE AREA, POROSITY, PORE SIZE, PORE VOLUME, DENSITY, PARTICLE SIZE, PARTICLE CLASSIFICATION,[ CONTACT ANGLE], AND OTHER PHYSICAL PROPERTIES OF MATERIAL; NAMELY, POROSIMETERS, PYCNOMETERS, PARTICLE SIZE ANALYZERS,[ ANGLOMETERS,] [ CENTRIFUGAL PARTICLE CLASSIFIERS, ] SURFACE AREA AND PORE VOLUMED ANALYZERS [, AND PERAMETERS ]

SCIENTIFIC INSTRUMENTS FOR DETERMINING SURFACE AREA, POROSITY, PORE SIZE, PORE VOLUME, DENSITY, PARTICLE SIZE, [ PARTICLE CLASSIFICATION, ] [ CONTACT ANGLE, ] AND OTHER PHYSICAL PROPERTIES OF MATERIAL-NAMELY, POROSIMETERS, PYCNOMETERS, PARTICLE SIZE ANALYZERS, [ ANGLOMETERS, ] [ CENTRIFUGAL PARTICLE CLASSIFIERS, ] SURFACE AREA AND PORE VOLUME ANALYZERS, [ AND PERMEAMETERS ]