Every Rudolph calibration standard is manufactured using extremely stable crystalline quartz which is mined and polished to specific planeness, parallelism, purity and axis standards. Each Quartz Plate comes complete with a label showing calibration at 8 different wavelengths, a protective box and a NIST Traceable Certificate. Since quartz is optically stable over time, changes in its optical rotation are the result of optical stress or surface scratches caused by physical handling. Therefore, it is the opinion of Research Analytical that recalibration of a Quartz Calibration Standard every two to three years is satisfactory. Click here for Part Numbers.
Any rotation is available.
Quartz Plates come in single and dual versions. Please contact the factory for the Quartz Plate that is best suited for your needs. The Quartz Control Plate consists of one right turning quartz plate. ISS of the customer's specified rotation. The Quartz Control Plate consists of one left and one right turning quartz plate in separate cells, each which can be removed from the cell holder for using either quartz plate separately.