
Maintaining Brand Trust: QC Protocols for Private Label Partners
This strategic guide evaluates Quality Control (QC) as a critical defense for private label stone brands, quantifying how a single defective batch can escalate a €10,000 cost into a €150,000 financial catastrophe. We detail Top Source Stone’s rigorous Pre-Shipment Visual Verification protocol, which provides high-definition transparency before final payment. The report establishes technical benchmarks for ASTM-standard freeze-thaw resistance, CE marking compliance, and AQL 1.0 tolerances essential for premium market positioning. For B2B stakeholders, these protocols ensure supply chain resilience and brand integrity across high-stakes international architectural projects.







