UL 711:2018 UL 711, Rating and Fire Testing of Fire Extinguishers.
1.1 These requirements cover rating, and performance during fire tests, of fire extinguishers intended for use in attacking Class A, B, C, D, and K fires as defined herein. These requirements also cover performance during fire tests of fire extinguishing agents for application on Class D fires. The ultimate rating of an extinguisher or the prescribed use of an extinguisher or fire extinguishing agent is based on its fire-extinguishing potential as determined by fire tests and presupposes installation and use in accordance in the United States with the Standard for Portable Fire Extinguishers, NFPA 10, and with the National Fire Code of Canada.
1.2 Fire extinguishers, fire extinguishing agents, or both shall also comply with the requirements for construction and performance as applicable to specific types, designs, sizes, and arrangements. Such additional requirements include ANSI/UL 8 CAN/ULC S554, ANSI/UL154 CAN/ULC S503, ANSI/UL299 CAN/ULC S504, ANSI/UL 626 CAN/ULC S507, and ANSI/ UL2129 CAN/ULC S566 and are not within the scope of these requirements.
2 Units of measurement
2.1 The metric unit shall be designated as the official unit for purposes of this standard. Where values of measurement are specified in both SI and English units, either unit is used. In cases of dispute, the metric unit shall be used.
3 Reference publications
3.1 See Annex A for a list of publications referenced in this standard. Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. When the latest edition of a standard is not applicable, the appropriate edition is indicated accordingly in Annex A.
4.1 For the purpose of this standard the following definitions apply.
4.2 AFFF — Aqueous film-forming foam.
4.3 AUTOIGNITION TEMPERATURE — The temperature at which the test fuel ignites automatically.
4.4 CONTROL — A reduction in fire intensity of approximately 90 percent.
4.5 EFFECTIVE DISCHARGE — The time of discharge of extinguishing agent from the extinguisher until gas point.
4.6 FFFP — Film-forming fluoroprotein.UL 711 pdf download.