SPI Supplies will be closed on Monday, May 30 for Memorial Day. All orders placed during the long weekend will be processed on Tuesday, May 31
Returning customer? Request an account for our new website on the contact form.
SPI Microspheres are available for calibrating SEM, TEM, LM, confocal, SPM, just about any and every imaginable kind of microscope. All products have been calibrated against NIST traceable standards.