Water Spray System, Ultra High-Speed : Local Application 2: The application of ultra high-speed water spray on a specific point or points of ignition, such as cutting, mixing or grinding operations
NFPA 15 Standard for Water Spray Fixed Systems For Fire Protection, 2001 ed. https://law.resource.org/pub/us/cfr/ibr/004/nfpa.2 5.2002.pdf, (Std: Wtr Spray Fixed Sys for Fr Prac - Amer) {183 NFC}