Do you issue a Certificate of Analysis (COA) for every batch of this eucalyptus leaf oil?
Yes. A Certificate of Analysis is issued for every production batch, and it is sent with the shipment or in advance on request. The COA is the contractual record that the batch meets the agreed specification.
What the COA Reports
| Parameter | Method | Value on a typical batch |
|---|---|---|
| Appearance | Visual | Clear, colorless to pale yellow liquid |
| Relative density (20°C) | Pycnometer/densimeter | 0.905-0.925 (or tightened window) |
| Refractive index (20°C) | Refractometer | 1.458-1.470 |
| Optical rotation (20°C) | Polarimeter | 0° to +6° |
| 1,8-Cineole content | GC (area %) | ≥ 80% |
| Solubility in 70% ethanol | Miscibility test | 1:5 clear solution |
| Microbiological | Plate counts | Within food/cosmetic limits |
| Batch no. & production date | Records | Unique per batch |
- Additional testing on request: full GC-MS chromatogram, heavy metals, pesticide residues, allergen declaration, IFRA certificate
- COA is issued in English; third-party lab reports can be arranged (SGS, Intertek, Eurofins) at cost
- Keep the COA with your records — it is your proof of specification compliance for customs and audits
- Each drum and sample bottle is labelled with the matching batch number for traceability
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บทความนี้เผยแพร่เมื่อ 2026-09-07 และอัปเดตล่าสุดเมื่อ 2026-09-07 โดยจะมีการปรับปรุงเนื้อหาอย่างต่อเนื่อง
