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Automatic fire extinguishing systems. Fire extinguishing media. Part 2. Foams concentrate for subsurface extinguishing of fires oil and petroleum tanks. General technical requirements and test methods
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Water and foam fire fighting systems. Fire alarm hydraulic, fire foam inducer, feeder. General technical requirements. Test methods
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Automatic water and foam extinguishers systems. Automatic fire water mist spray extinguishers systems. Modules. General technical requirements. Test methods
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Communication networks and systems in substation. Part 1. Introduction and overview
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Selection and dimensioning of high-voltage insulators intended for use in polluted conditions. Part 3. Polymer insulators for a.c. systems
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