When overseas customers evaluate a high temperature heat transfer fluid such as SCHULTZ 380 Heat Transfer Fluid, they usually do not rely only on the product name or a single temperature statement. Purchasing, engineering, EHS and quality teams need to connect TDS, SDS, COA and RFQ fields so that document purpose, operating boundary and inquiry information are clear.
This article follows a common document review workflow for overseas inquiries. It is intended for RFQ preparation and purchasing communication. It does not replace formal batch document review, and it should not be treated as a guarantee of document completeness, service life or suitability for a specific system.
1. TDS Supports Technical Selection, Not Only Maximum Temperature
The TDS is usually the first technical document requested by a customer. Key fields include product type, recommended operating temperature, typical properties, viscosity, density, flash point, pour point, thermal stability notes and application boundaries.
For heat transfer fluid selection, maximum temperature is only the entry point. Customers should also review heater outlet temperature, maximum film temperature, return oil temperature, continuous operation time, heating method and heat-load fluctuation. If the system has frequent start-stop, local overheating or high heat-flux risk, these conditions should be included in the RFQ instead of only one target temperature.
2. SDS Is for Safety, Storage and Compliance Review
The SDS has a different role from the TDS. It supports hazard classification, personal protection, spill response, fire-fighting measures, storage conditions, transportation notes and regulatory review for the target market.
SDS cannot replace TDS for product selection, but it helps purchasing and EHS teams review import, storage, site use and internal approval requirements. For overseas customers, SDS language, version, update date and target-market applicability should also be confirmed.
3. COA Confirms Batch Quality
A COA is mainly used for batch quality confirmation. Before order release or shipment, customers may request a COA linked to the actual batch number and review whether key test items match the purchase specification and product description.
TDS values are usually typical values or product descriptions, while COA values are tied to an actual batch. If the customer has specific requirements for viscosity, flash point, appearance, water content or other acceptance items, these should be written in the RFQ or purchase specification in advance, and the COA batch number should match the final shipment batch.
4. RFQ Fields Decide Whether the Inquiry Is Actionable
An effective RFQ for SCHULTZ 380 Heat Transfer Fluid should not contain only product name and quantity. RFQ fields should connect product documents, application conditions, purchasing requirements and document requests so that the supplier can judge whether further technical confirmation is needed.
| RFQ Field | Recommended Information |
|---|---|
| Operating temperature | Target outlet temperature, normal return oil temperature, maximum film temperature or heating method. |
| System information | System capacity, heat source, heat-consuming equipment, new system or top-up system. |
| Current oil information | Current oil model, service time, top-up record and latest used oil analysis. |
| Purchasing requirements | Quantity, package, delivery region, target lead time and trade terms. |
| Document list | TDS, SDS, COA, batch documents, stamped documents, required language and regulatory basis. |
5. Review Documents by Purpose, Not by Quantity
Document review should be organized by purpose. TDS supports technical selection, SDS supports safety and compliance, COA supports batch confirmation, and RFQ transfers inquiry and operating conditions. These documents should remain consistent in product name, model description, batch information, temperature boundary and special customer requirements.
If document version, language, batch relationship or application boundary is unclear, it should be confirmed before purchasing or publishing a conclusion. Having more files does not always mean the document chain is complete. Each file must serve the right purpose.
6. Turn Uncertainty into Confirmable Questions
If there are uncertain points, avoid absolute statements. A product name alone should not be used to promise suitability for a specific system, service life, direct replacement or long-term operating result before documents and operating conditions are reviewed.
- Whether the current operating conditions are within the recommended boundary.
- Whether used oil analysis or current oil condition review is needed.
- Whether compatibility or oil-mixing risk needs to be checked.
- Whether system cleaning, draining, filtration or shutdown window is involved.
- Whether the target market requires specific language, regulatory format or stamped documents.
Conclusion
For overseas customers, aligning TDS, SDS, COA and RFQ fields is a practical way to reduce purchasing risk. When document purpose is clear, engineering, purchasing, EHS, quality and the supplier can communicate on the same factual basis.
For products such as SCHULTZ 380 Heat Transfer Fluid, clearer document review supports quotation, delivery, acceptance and technical service. The final judgment should still be based on the customer’s actual operating conditions, formal document version and batch information.
