We fulfill

highest standards

Certificated QM System

Trace impurity analysis by ICP-OES

Transmission measurement

Measurement of OH-content

Optical microscopy


In the highly competitive business world, success relies strongly on a company's commitment to quality. QSIL has established this commitment to quality in every thing we do. With QSIL, our customers are guaranteed a quality management system thoroughly documented from research and development to product delivery.

The main goal of QSIL's quality management policies is reliable delivery of products that exactly meet the needs and expectations of our customers. Through the use of statistical process control to monitor the manufacturing process, the measurement and recording of every step in the production process guarantees the complete tractability from the final product back to the raw material.

Our in-house laboratory provides us access to all essential characterization methods:

  • Trace impurity analysis by optical emission spectroscopy (ICP-OES) 
  • Transmission Measurement 
  • OH-Content Measurement
  • Optical Microscopy

QSIL's Quality Management System is certificated according to DIN EN ISO 9001 since 1998.