Premium JGS-1 quartz material ensures excellent durability and reliability for laboratory applications. devised with precise dimensions of 19x1mm, this reflecting glass is ideal for various testing and measurement needs. Offers superior surface accuracy of /4@632.8nm, enhancing the precision of your optical experiments. High temperature resistance allows continuous operation at temperatures up to 1200°C, making it suitable for demanding environments. Compatible with U-V visible spectrophotometers, this reflecting glass provides optimal transmittance for both U-V and visible light applications.