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The separation distances follow from the liquid's classification, the tank's capacity and the protection provided, and they determine the site layout.

Demonstration scenario

A 50 m³ tank, fixed roof, flammable liquid

The tank

Capacity
50
Diameter
4.2 m
Roof type
Fixed roof
Liquid classification
Taken from the liquid classification in the project

Protection

Cooling protection
None
Containment
Bund
  • The distances depend on the liquid's classification; changing the classification changes the whole result.
  • The tool will use the classification already verified in the project and will not ask for it again.

Result

Distance to the property line
Distance to a road
Distance between tanks
Governing rule

Interface demonstration — not a professional result. The values marked — will be calculated once this tool's data source has been loaded.

Data source

NFPA 30 (2024), chapter 22 — separation distance tables

The edition is known from the procedure. The tables' contents require an authorised copy.

What is blocked, and what would release it

  • NFPA 30 (2024) — chapter 22, the separation distance tables

    The distance tables depend on the liquid's classification, the tank diameter and the protection provided. None of them appears in the Israeli procedure.

    We currently have no legitimate route to obtain the document.

Until the source is obtained, the tool shows the interface and the calculation steps, and presents no regulatory value.

Your data is stored in this browser alone and is never sent to Hoshen or to anyone else.

Need a professional review?

These tools give a first picture. For a specific review of the building, the materials and the requirements, we would be glad to work with you.