Quality Assurance at the Highest Level

Quality Control

From raw material through every production stage to delivery, we continuously monitor all relevant parameters. State-of-the-art analytical technology, in-house test software and ISO 9001 certification reliably ensure the agreed specifications.

Seamless control along the entire process chain

Quality assurance at Strobel Quarzsand doesn't begin at the end of production – it accompanies every step. Through constant monitoring of the raw material and continuous sampling during all production stages, we ensure that no product with deviations reaches delivery.

A purpose-built software supports our in-house laboratory in analysis and comparison against the agreed specifications. On request, our customers receive a works inspection certificate for every single delivery.

Grain Size Distribution

Sieve analysis and optical particle measurement for precise particle size distribution

X-Ray Fluorescence Analysis (XRF)

Automated sample preparation for reliable chemical quality verification

Spectroscopic Color Analysis

Consistent color quality throughout the entire delivery period

Physical and Chemical Testing

Parameters according to current technical guidelines and standards

Certification and customer reviews

DIN EN ISO 9001 certification documents our systematic commitment to quality according to international standards. This is complemented by consistently excellent customer reviews – proof that our quality system works in practice, not just on paper.

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