Who it is for
- Engineering contractors and design offices with a new plant, line, tank farm or warehouse.
- EPC contractors working abroad, including Turkish contractors building in the Middle East, Africa and Central Asia, who need the classification to IEC.
- Owners who want the zones fixed before the electrical equipment is purchased.
What we need from you
- P&IDs and the plot plan or building layout.
- Process data: substances, temperatures, pressures and flow rates.
- The equipment list with seal and connection types.
- The ventilation concept: open air, natural or mechanical ventilation, air changes.
- Your project specification, if it sets the classification method.
What you receive
- A source-of-release list with the grade of each release.
- A calculation sheet for every source: release rate, degree and availability of ventilation, zone type and extent (IEC 60079-10-1, and IEC 60079-10-2 for dusts).
- Zone drawings in plan and section on your layout.
- Equipment requirements for each zone: EPL, gas or dust group, temperature class.
- An assumptions register, so that the classification can be updated when vendor data arrive.
Your stamp, our calculations
Many projects require deliverables to be issued under the stamp of a locally licensed engineering company. In that case we work as your subconsultant: we deliver on your title block and template, you review and issue. If your project specification calls for a code other than IEC 60079-10-1, tell us which one; the offer confirms whether we can apply it.
How it works
Send the package
Drawings, process data and the specification.
Scope and fixed price
Within two working days: the sources we see, the assumptions to agree and a fixed price.
Classification
Calculation sheets and draft zone drawings, with open questions in writing.
Issue and revision
One revision after your comments is included. Revisions after vendor data are quoted separately.
Scope, fees and timeline
| Item | Typical time |
|---|---|
| Small unit, up to about 15 sources of release | 1–2 weeks |
| Medium plant, 15 to 50 sources | 2–4 weeks |
| Large project | Agreed in the offer |
We quote a fixed price in writing within one working day of seeing your documents. The price depends on the number of sources of release, the documents and drawings available, and the scope you choose; there are no hourly rates. Quotations exclude taxes.
Basis of our work. Our assessments are based on the documents, drawings and data you provide. On-site verification remains the client's responsibility unless the proposal says otherwise. Every report lists the documents it relies on and the assumptions made where information was missing.
Frequently asked questions
Can you classify from drawings only?
Yes. At the design stage this is the normal way. Every assumption is recorded, and the classification should be confirmed against the plant as built before start-up.
Do you also classify dust areas?
Yes, to IEC 60079-10-2, including the effect of housekeeping on the extent of zone 22.
Which file formats do you deliver?
Calculation sheets and zone drawings as PDF on your layout. If you need CAD layers, name your format; the offer confirms what we can deliver.
Who signs the classification?
On a stamped project, your company issues it and we appear as the preparer. On other projects, Axosfer issues it, signed by the responsible engineer.