Annotation
Purpose of the study. The article discusses the main areas of HPQ application, taking into account the newly emerging applications. The HPQ’s main criteria and quality parameters are analyzed on the example of the world's leading manufacturers, including the Russian Quartz company.
Outcomes. The HPQ’s main quality criteria in terms of chemical purity, gas-liquid and foreign inclusions have been determined. The HPQ’s usage in different hi-tech application was indicated depending on the content of impurities
