QUALITY & ANALYSIS
Batch evidence before product claims.
MetraHum links every declared value to a method, test basis, product form and traceable batch record.
QUALITY PRINCIPLE
A percentage is meaningful only when the method is known.
Humic products can look similar on a label and behave differently in water, a tank or soil. We therefore read humic and fulvic results together with dry-matter basis, moisture, ash, pH, potassium, solubility and insoluble residue.
SOURCE CONTROL
Know the mineral before formulating it.
- Source identity and representative sampling
- Moisture, ash and organic-matter profile
- Contaminant and heavy-metal review by market need
FORM CONTROL
Test the property that governs field use.
- Particle or granule-size distribution
- Solubility, dispersion and insoluble residue
- Density, pH and suspension behaviour for liquids
RELEASE CONTROL
Keep the evidence with the batch.
- Batch code and retained sample
- Certificate of analysis based on approved specification
- TDS, SDS and market-specific label set
Last updated · 18.08.2026
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