EUROLAB laboratory provides testing and compliance services within the scope of EN 1568-4 standard. This part of the EN 1568 standard specifies requirements for chemical and physical properties and minimum performance requirements for low expansion foams suitable for surface application to water-miscible liquids. Requirements for marking are also given.
In this part of the document, fire performance is tested using acetone and isopropanol as fuel, which forms the basis for performance classification. However, there are many water-miscible liquids with properties more or less different from acetone and isopropanol.
Tests using other fuels have shown that the performance of various foams can differ significantly. An example of such fuels is Methyl Ethyl Ketone (MEK). Therefore, when the foam is used against fires in other water-miscible fuels other than acetone and isopropanol, respectively, it is important for the user to check for any adverse or unacceptable loss of efficiency.
It is also important for the user to bear in mind that fuel depths and application methods can result in significant loss of efficiency and that these considerations should be carefully considered by the user when assessing suitability for certain applications.
Some concentrates conforming to this part of EN 1568 may also be suitable for other parts and may therefore also be suitable for application as medium or high expansion foams.
Any type approval according to this standard becomes void if there is any change in the composition of the approved product. Some concentrates conforming to this part of EN 1568 may also be suitable for other parts and may therefore also be suitable for application as medium and/or high expansion foams and for low expansion application to water-miscible liquids.
Since fire extinguishing foams are chemicals or chemical preparations, Commission Directive 2000/60/CE and Regulations (EC) No 1272/2008 (CLP) and 1907/2006 (REACH) apply and should be observed.
Firefighting foams are widely used to control and extinguish Class B fires and to prevent re-ignition. These foams can also be used to prevent ignition of flammable liquids and to extinguish Class A fires under certain conditions.
Foams can be used with other extinguishing agents, especially gaseous media and powders subject to other European standards. Foam concentrates of different types and production should not be mixed.
These specifications are designed to ensure that the extinguishing medium has minimal useful fire fighting capability. The user must ensure that the foam concentrates are used correctly at the concentration recommended by the manufacturer. The fire performances specified by this standard cannot reproduce practical fire situations.
It should be noted that some combinations of extinguishing powder and foam can result in unacceptable loss of efficiency due to adverse interaction of the chosen medium when applied simultaneously or sequentially to the fire.
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