Quality and documents
Every number on this page comes from a laboratory report we hold, or is marked as a contract target.
The laboratory report
The 2016 and 2026 reports were issued for the company’s washed salt and are transcribed here in full. The laboratories’ accreditation is being verified, and a full ISO 17025 panel covering insolubles, moisture, heavy metals and microbiology has been commissioned.
Washed solar salt
Laboratory report, sampled 11 August 2016
| Parameter | Result | Buyer reference |
|---|---|---|
| Sodium chloride (NaCl) | 99.44 % | 98.5–99.0 % minimum on de-icing and refiner sheets |
| Moisture (H₂O) | 1.12 % | 4 % maximum typical; 3 % contract target |
| Water-insoluble matter | 0.10 % | 0.15 % maximum typical |
| Calcium (Ca) | 0.07 % | 0.25 % contract target |
| Magnesium (Mg) | 0.05 % | 0.15 % contract target |
| Sulphate (SO₄) | 0.30 % | Below 0.5 % typical; agreed per lot |
| Calcium sulphate (CaSO₄) | 0.23 % | For information |
| Magnesium sulphate (MgSO₄) | 0.17 % | For information |
| Magnesium chloride (MgCl₂) | 0.06 % | Low; the salt most linked to caking |
| Ferrocyanide (anti-caking) | None | 50–100 mg/kg on request |
| Sieve | Retained % | Cumulative % | Passing % |
|---|---|---|---|
| 12 mm | 0.26 | 0.26 | 99.74 |
| 10 mm | 0.34 | 0.60 | 99.40 |
| 8 mm | 2.86 | 3.46 | 96.54 |
| 6.3 mm | 7.38 | 10.84 | 89.16 |
| 5 mm | 9.31 | 20.15 | 79.85 |
| 4 mm | 16.07 | 36.22 | 63.78 |
| 3.15 mm | 17.80 | 54.02 | 45.98 |
| 2 mm | 28.74 | 82.76 | 17.24 |
| ≤ 2 mm | 17.24 | 100.00 | 0.00 |
79.3 % lies between 2 and 8 mm, 17.2 % is finer than 2 mm and 3.5 % is coarser than 8 mm; 63.8 % passes 4 mm.
| Parameter | Sample 1 | Sample 2 | Sample 3 |
|---|---|---|---|
| Mg (mg/kg) | 80 | 352 | 1,338 |
| Ca (mg/kg) | 1,927 | 2,187 | 963 |
| SO₄ (mg/kg) | 4,903 | 6,663 | 3,133 |
| CaSO₄ (%) | 0.655 | 0.743 | 0.327 |
| MgSO₄ (%) | 0.036 | 0.178 | 0.103 |
| MgCl₂ (%) | 0.003 | 0.000 | 0.442 |
| NaCl (%) | 99.22 | 99.02 | 98.66 |
Three samples, September 2026: calcium, magnesium and sulphate, with sodium chloride by difference. Sample 3 shows 0.44 % magnesium chloride, which is why washing control is written into contracts.
A single washed-salt sample from 2016, transcribed in full. Sulphate moves between lots (0.30–0.67 % across our reports), so every contract carries a per-lot ceiling. Heavy metals and microbiology are part of the ISO 17025 panel now commissioned; report PDFs are sent on request.
Typical values and contract targets
Typical values come from the reports; targets are the limits we agree per lot and confirm by load-port inspection.
| Parameter | Typical | Contract target | Method |
|---|---|---|---|
| Sodium chloride (NaCl) | 98.7 – 99.4 % | ≥ 98.5 % (dry basis) | ASTM E534 |
| Moisture (H₂O, 110 °C) | 1.1 % (2016 washed sample) | ≤ 3.0 % ex-stockpile | ASTM E534 |
| Water-insoluble matter | 0.10 % (2016 washed sample) | ≤ 0.20 % | ASTM E534 |
| Calcium (Ca) | 0.07 – 0.22 % | ≤ 0.25 % | ASTM E534 |
| Magnesium (Mg) | 0.01 – 0.13 % | ≤ 0.15 % | ASTM E534 |
| Sulphate (SO₄) | 0.30 – 0.67 % | ≤ 0.50 % target, agreed per lot | ASTM E534 |
| Anti-caking agent (YPS) | None in samples | 50 – 100 mg/kg on request, subject to processing | Supplier declaration |
Targets by grade
| Parameter | Target |
|---|---|
| NaCl, dry basis | 98.5 % minimum |
| Sulphate (SO₄) | 0.5 % maximum, per lot |
| Water-insoluble matter | 0.2 % maximum |
| Moisture | 3 % maximum ex-stockpile |
| Gradation | 2–8 mm main fraction; envelope agreed |
| Anti-caking | 50–100 mg/kg on request |
Reference: EN 16811-1, ASTM D632 Type I, importer specification sheets
| Parameter | Target |
|---|---|
| NaCl, as received | 98.7–99.4 % |
| Water-insoluble matter | About 0.1 %, per lot |
| Calcium and magnesium | 0.07–0.22 % and 0.01–0.13 % |
| Sulphate (SO₄) | 0.30–0.67 %, lot-dependent |
| Moisture | 1–3 % after drainage |
Reference: The buyer's plant specification, confirmed by a pre-shipment yield trial
| Parameter | Target |
|---|---|
| NaCl, dry basis | 98.5 % minimum |
| Sulphate (SO₄) | 0.5 % target |
| Water-insoluble matter | 0.2 % maximum |
| Gradation | Coarse or fine on request |
Reference: The buyer's specification; not chlor-alkali membrane grade
| Parameter | Target |
|---|---|
| NaCl, dry basis | 99.0 % target |
| Water-insoluble matter | 0.15 % maximum |
| Moisture | 3 % maximum |
| Standard | EN 973 tested per lot on request |
Reference: EN 973 regeneration salt; customer standards
| Parameter | Target |
|---|---|
| Status | Documentation in progress |
| Required | Codex Stan 150 panel: heavy metals, insolubles, moisture, microbiology |
| Claim | None until the reports are issued |
Reference: Codex Stan 150-1985, Regulation (EU) 2023/915, destination rules
How quality is proven
- Lot sampling at the stockpile and an accredited laboratory analysis before the vessel is fixed.
- Independent load-port inspection by SGS, Bureau Veritas or Intertek: sampling, analysis and draft survey. Your own surveyor is welcome; load-port results are final.
- Certificate of analysis, inspection certificate and certificate of origin presented with the shipping documents.
- Retained samples kept for 90 days for any claim.
What we do not claim
- No ISO, HACCP, halal, kosher or BRCGS certification is claimed; certification status is available on request.
- No food, feed, pharmaceutical or chlor-alkali grade until the relevant reports exist.
- No “100 % pure”, “organic” or “medical” descriptions. The salt is sodium chloride at 98.7–99.4 % with documented minor constituents.
- Production capacity is stated only as documented availability per season.
Request a quote
Tell us what you need and where it should go. Export sales replies within one business day with availability, an indicative price on your Incoterm and the laboratory report.
- Reply within one business day, in English or Arabic.
- Laboratory report and specification sent with every quotation.
- Prefer email? sales@almozansalt.com