In the field of precision measurement and quality control, advancements in technology have paved the way for innovative solutions to address the challenges of characterizing particle sizes in various materials. One such breakthrough lies in the realm of Dynamic Light Scattering (DLS), a powerful technique employed for sizing particles in the nanometer to submicron range. The need for accurate and efficient in line size measurement has become increasingly crucial across industries such as pharmaceuticals, biotechnology, chemicals, and materials science. In this work we show experimental results of size determinations for three polystyrene latex standards under continuous flow as well as at stop flow using the Vasco Kin.