COA Parameter Checker
Enter values from any supplier's Certificate of Analysis and instantly check whether they meet the specification for your application.
Standard grade suitable for most interior emulsion formulations.
Enter values from your COA (leave blank to skip)
What is a Certificate of Analysis?
A Certificate of Analysis (COA) is a document issued by a mineral supplier that reports the laboratory test results for a specific batch of product. It confirms that the material meets the agreed specification and provides the actual measured values for parameters such as CaCO₃ content, brightness, moisture, and particle size.
Which COA parameters matter most?
For paint applications, brightness and CaCO₃ content are the most critical parameters. Low brightness dulls white and pastel shades. For rubber and PVC, moisture content is critical — high moisture causes processing problems. For food and pharmaceutical applications, purity and iron oxide content are tightly controlled.
SK Stardust Industries issues a full, batch-specific COA with every shipment. Request a sample COA before placing your first order.
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Calculators and converters for paint formulators, rubber compounders, and procurement teams.