Check the listing for details. Coulter Laser Diffraction Particle Size Standards - 35 micron - Silicon Carbide. Condition: New – Open box. Listed at 125.00 USD. Experience the precision of Coulter Laser Diffraction Particle Size Standards, a trusted choice for accurate particle sizing in a variety of applications. These standards are designed to meet the rigorous demands of scientific research and industrial quality control, providing consistent and reliable results. Sold through Coulter Beckman, a name synonymous with excellence in measurement technology, these particle size standards are essential for calibration and performance verification of laser diffraction instruments. Their versatility and durability make them an invaluable tool for professionals in fields such as physics, chemistry, and engineering. What is shown in the images is offered. Item is beyond expiration date.