To verify a wax supplier's CoA and CoO in Türkiye, confirm each CoA value cites a named test method (ASTM D87, D721 or D938, or EWF 001/03), and check the CoO's issuing chamber against the ICC accreditation list. Non-preferential Certificates of Origin and EUR.1 Movement Certificates serve different purposes in Turkish trade, so buyers should confirm which one applies before accepting a shipment.
Knowing how to verify a wax supplier CoA and CoO Turkiye starts with two documents: the Certificate of Analysis, which states the tested properties of a shipment, and the Certificate of Origin, which confirms where the goods were made. A buyer checks both against recognized test methods and an issuing chamber before paying. This guide sets out what each document should contain and how to confirm it is genuine.
Who this guide is for
This page is written for three readers. Candle and cosmetics buyers need to confirm a paraffin wax or petroleum jelly shipment matches its stated grade before blending. Procurement leads at trading and distribution firms need a repeatable check they can apply to every purchase order. Quality and compliance staff need to know which standard a given test result should reference, so a CoA can be audited later.
What a Certificate of Analysis should show
A CoA lists the tested values for a specific batch: melting or congealing point, oil content, and carbon number distribution, among others. Each value should reference the test method used, not just a number.
Melting and congealing point
According to ASTM International (2025), ASTM D87 is the standard cooling-curve method for melting point of petroleum wax, and it is widely used for highly paraffinic or crystalline grades. A related method, ASTM D938, measures congealing point — the temperature at which a cooling sample sets or resists flow (ASTM International, 2025).
Oil content
Oil content separates semi-refined waxes from other grades. ASTM D721 covers oil content determination in waxes with a congealing point of 30°C or higher, for waxes containing up to 15% oil (ASTM International, 2017). A CoA that cites this method gives a buyer a checkable number, not an adjective.
Carbon number distribution
For hydrocarbon waxes, the European Wax Federation (2015) publishes EWF Method 001/03, which determines carbon number distribution from C16 to roughly C100. This method applies to petroleum-derived and Fischer-Tropsch waxes, not to natural waxes such as beeswax.
What a Certificate of Origin proves — and how to check it
A Certificate of Origin, or Menşe Şahadetnamesi in Turkish trade documents, states where goods were produced. It is requested by customs authorities, banks and importers as part of standard trade compliance (International Chamber of Commerce, 2020).
Non-preferential origin vs. EUR.1
In Türkiye, the standard Certificate of Origin demonstrates non-preferential origin. A separate document, the EUR.1 Movement Certificate, confirms origin under a specific trade agreement (Republic of Türkiye Ministry of Trade, 2022). A buyer should ask which document applies to their shipment, since the two serve different purposes.
Who issues it in Türkiye
According to TOBB (Union of Chambers and Commodity Exchanges of Türkiye), a Menşe Şahadetnamesi is issued and approved by the chamber in the country of origin. Confirming the issuing chamber is a first check before accepting the certificate.
Verifying authenticity online
The International Chamber of Commerce operates a CO Verification platform, launched in 2014, letting customs authorities check certificates issued by accredited chambers in over 40 countries. This is a practical route for verifying a wax supplier CoA and CoO Turkiye online, rather than relying on a scanned copy alone.
How to verify a wax supplier CoA and CoO Turkiye: the steps
- Request the CoA and CoO before shipment, not after arrival.
- Confirm each CoA value cites a named test method, such as ASTM D87, D721 or D938.
- Check the CoO states non-preferential origin or names the relevant trade agreement.
- Confirm the issuing chamber against the ICC accreditation list.
- Cross-check the batch number on the CoA against the shipment's packing list.
- Keep both documents on file for customs and audit purposes.
What to check before you order
- CoA references a named standard for each tested property, not a bare number
- Oil content is stated with its test method, per ASTM D721
- Melting or congealing point is stated with its test method, per ASTM D87 or D938
- CoO names the issuing chamber and country of origin clearly
- CoO type matches the shipment: non-preferential origin or EUR.1
- Issuing chamber appears on the ICC accreditation list
- Batch numbers match across CoA, CoO and packing list
- Supplier can reissue or confirm documents on request
Where lab accreditation fits
A test result is only as reliable as the lab that produced it. In Türkiye, TÜRKAK accredits testing and calibration laboratories against ISO/IEC 17025, the international standard for laboratory competence (TÜRKAK, undated). Asking whether a CoA came from a TÜRKAK-accredited lab is a reasonable follow-up question for any buyer verifying documents in 2024 or 2025.
Working with BHD Group
BHD Group operates two divisions, BHD Chemical and BHD Sourcing, from one accountable house. Our range leads with Paraffin Wax, Petroleum Jelly and Slack Wax — Turkish-origin, processed to origin, and documented on request. We supply grades buyers actually search for, including paraffin HP3, M3 and UL2 for container and economy candles, and Petroleum Jelly Ultra Snow White (BP-2017, 0.5Y) for blending. On the industrial side, our range includes bitumen 60/70, the penetration grade most commonly requested for roads and roofing. Buyers researching how to verify a wax supplier CoA and CoO Turkiye online or in the USA are welcome to request our documentation ahead of order.
Sources
- ASTM International (2025) — Standard Test Method for Melting Point of Petroleum Wax (Cooling Curve): https://store.astm.org/standards/d87
- ASTM International (2017) — Standard Test Method for Oil Content of Petroleum Waxes: https://store.astm.org/d0721-17.html
- ASTM International (2025) — Standard Test Method for Congealing Point of Petroleum Waxes, Including Petrolatum: https://store.astm.org/d0938-25.html
- European Wax Federation (2015) — Standard Test Method for Analysis of Hydrocarbon Waxes by Gas Chromatography: https://www.wax.org/uploads/test-methods/EWF_Analysis_Hydrocarbon_Waxes-2015.pdf
- International Chamber of Commerce (2020) — The ICC Guide to Authentic Certificates of Origin: https://www.gachamber.com/wp-content/uploads/2024/12/icc-2020-co-guide-customs-importers.pdf
- International Chamber of Commerce (undated) — Certificates of Origin Verification Website: https://iccwbo.org/business-solutions/certificates-of-origin/certificates-of-origin-verification-website/
- Republic of Türkiye Ministry of Trade (2022) — Origin of Goods, Frequently Asked Questions: https://www.trade.gov.tr/customs-formalities/frequently-asked-questions/origin-of-goods
- TOBB (undated) — Menşe Şahadetnamesi: https://www.tobb.org.tr/ABDID/DisTicaret/Sayfalar/mense.html
- TÜRKAK (undated) — Calibration Accreditation Department: https://www.turkak.org.tr/en/institutional/calibration-accreditation-department.html
| Standard / Document | What it measures or confirms | Why a buyer checks it |
|---|---|---|
| ASTM D87 | Melting point of petroleum wax (cooling curve) | Confirms the wax matches its stated melting range |
| ASTM D721 | Oil content of petroleum waxes up to 15% | Confirms the wax is semi-refined, not another grade |
| ASTM D938 | Congealing point of petroleum waxes and petrolatum | Confirms set behavior matches the buyer's application |
| EWF Method 001/03 | Carbon number distribution, C16 to ~C100 | Confirms hydrocarbon composition for blending or GC audit |
| Certificate of Origin (Menşe Şahadetnamesi) | Country where goods were produced | Required by customs, banks and importers |
| EUR.1 Movement Certificate | Origin under a specific trade agreement | Needed only when a trade agreement applies |
Frequently asked questions
What is how to verify a wax supplier coa and coo turkiye?
It is the process of checking a wax shipment's Certificate of Analysis and Certificate of Origin against recognized standards before accepting or paying for it. The CoA should cite test methods such as ASTM D87, D721 or D938. The CoO should name the issuing chamber and origin status clearly.
How does how to verify a wax supplier coa and coo turkiye work?
A buyer checks that each CoA value references a named test method, then confirms the CoO's issuing chamber against the ICC accreditation list. Batch numbers on both documents should match the shipment's packing list before the order is accepted.
What are the benefits of how to verify a wax supplier coa and coo turkiye?
Verifying both documents reduces the risk of accepting mismatched or fraudulent shipments. It gives quality teams a checkable record for audits, and gives procurement a repeatable step to apply to every purchase order from a Turkish supplier.
Why buyers work with BHD Group
Two divisions operate under a single accountable house. There is no handoff between a trading desk and a sourcing desk that leaves a buyer chasing an answer — one team owns the order from enquiry to delivery.
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