On October 2, 2024, the revised Technical Bulletin TB 64-2024 was published. This bulletin, titled “Foam Concentrate (SVM) Proportioning Systems,” replaces the previous TB 64B. This comprehensive revision marks an important step in clarifying and updating the application of standards regarding FMA dosing systems in all types of fixed fire sprinkler systems (VBB systems).
TB 64-2024 focuses exclusively on the application of standards and does not address more situation-specific issues. Topics that are explicitly outside the scope of this bulletin include:
These aspects are determined by the risk to be protected, the design standard, the requirements of the parties involved, and the type of VBB system.
TB 64-2024 is independent of the ongoing foam transition, which focuses on the shift from fluorinated to fluorine-free foam-forming agents. For every project undergoing this transition, a full reassessment of the suitability of the VBB system in combination with fluorine-free SVM is required. This reassessment falls outside the scope of the bulletin.
However, the bulletin does become relevant when the reassessment results in modifications to the foam concentrate dosing system. In that case, TB 64-2024 provides guidelines for the correct application of the standards.
TB 64-2024 is an important reference for professionals involved in the design, assessment, or maintenance of SVM dosing systems. For more information about this bulletin, please consult the CCV.
Do you have questions about what this bulletin means for your projects and inspections? Please contact Normec FSS.
Normec offers expert and independent inspections for safe buildings, installations, and facilities.
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