Minimize response of analytic systems to shape effects with monosized particles.

Conveniently check the sizes of bacteria, viruses, ribosomes and sub-cellular components with these size standards.

Analyze wide size range materials through laser diffraction or other methods with uniform polymer particles that mimic real world particles.

Use Thermo Scientific™ Dri-Cal™ Particle Size Standards for calibrating particle sizing and counting instruments that require dry particles.

Simplify the preparation of calibration wafers with these particle size standards.

Achieve high visual contrast with Thermo Scientific™ ChromoSphere™-T Certified Size Standards, colored polymer microspheres with NIST™-traceable diameters.

Replace polystyrene spheres in many applications with dry glass NIST™-traceable size standards.

Provide greater durability and chemical stability when using solvents with these monodisperse silica microspheres used in instrument calibration and as spacers.

Calibrate airborne optical particle counters to comply with ISO 21501-4 with Thermo Scientific™ 4D Series Dry Microsphere Size Standards.