Jet fire and cryogenic exposure

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Fire testing

Jet fire and cryogen ...

We test solutions that need to withstand extreme conditions.

Jet fire is relevant where leakage of pressurised liquid or gas can create very high heat loads. We have long experience in this field and have helped develop methods used by both industry and authorities.

We run both single tests and larger test series. When a standard jet fire test is not enough, we can carry out extended tests with higher temperatures, higher heat flux and larger specimens.

We also test pressurised pipes, valves and end connections to relevant specifications.

Typical services

Standard jet fire

The purpose of a standard jet fire test is to determine the resistance of passive fire protection to jet fire exposure. The test provides an indication of the performance of the passive fire protection in a jet fire scenario. The test standards ISO 22899-1 and OTI 95634 both apply to:

Pipes
Panels
Structural steel
Pipe and cable penetrations

Extended jet fire

Our extended jet fire furnaces are used when standard jet fire testing is not sufficient:

higher temperatures (1300°C–1400°C)
higher heat flux (350 kW/m²)
larger test specimens (Ø approx. 1 m)

HC-jet fire combination tests

Used for certification against various specifications, with the possibility of interpolation between tests. This makes it possible to test variations of the passive fire protection on several specimens in a single HC furnace test, and then compare these with a selection of variations exposed to jet fire testing.

HC fire (pool fire) – Jet fire – Jet fire extension

Sequential tests with different heat flux levels

The extended jet fire furnace can be used to simulate HC fire exposure in a furnace. This allows us to carry out a combined test where jet fire is directly followed by a fire similar to a standard HC fire, in one and the same test. For example:
350 kW/m² jet fire for 15 minutes + 2 hours of pool fire.

Pressurised pipes, valves and end connections

We test pressurised pipes, valves and end caps in accordance with, among others, API standards.

Cryogenic exposure

Used for testing and certification of insulation materials exposed to cryogenic releases, with the option of testing against various standards and exposure scenarios. This makes it possible to document materials’ resistance to low temperatures, as well as combined stresses from cryogenic release and subsequent fire.

We offer testing in accordance with ISO 20088-1:2016 (liquid phase) and ISO 20088-3:2018 (jet release), as well as customized tests for combined scenarios.