In over 100 years of quartz glass fabrication, the applications and the optical requirements for this type of optical
material have significantly changed. Applications like spectroscopy, UV flash lamps, the Apollo missions as well as the
growth in UV and IR applications have directed quartz glass development towards new products, technologies or
methods of measurement. The boundaries of the original measurement methods have been achieved and more sensitive
measurements with precise resolution for transmission, purity, radiation resistance, absorption, thermal and mechanical
stability as well as optical properties like homogeneity, stress birefringence, striae and bubbles/inclusions had to be
found. This article will provide an overview of the development of measuring methods of quartz glass, discuss their
limits and accuracy and point out the parameters which are of high relevance for today's laser applications.