NFPA 291:2022

Chapter 1 Administration 1.1 Scope. 1.2 Purpose. 1.3 Application. 1.4 Units. Chapter 2 Referenced Publications 2.1 General. 2.2 NFPA Publications. (Reserved) 2.3 Other Publications. 2.4 References for Extracts in Recommendations Sections. Chapter 3 Definitions 3.1 General. 3.2 NFPA Official Definitions. 3.3 General Definitions. 3.4 Hydrant Definitions. Chapter 4 Flow Testing 4.1 Water Flow Testing Purposes. 4.2 Rating Pressure. 4.3 Procedure. 4.4 Layout of Test and Procedure to Determine the Available Water Supply in a Water Main. 4.5 Layout of Test and Procedure to Evaluate the Available Flow Through a Fire Hydrant. 4.6 Equipment. 4.7 Test Procedure. 4.8 Pitot Readings. 4.9 Determination of Discharge. 4.10 Use of Pumper Outlets. 4.11 Determination of Discharge Without a Pitot. 4.12 Calculation Results. 4.13 Data Sheet. 4.14 System Corrections. 4.15 Public Hydrant Testing and Flushing. Chapter 5 Marking of Hydrants 5.1 Classification of Hydrants. 5.2 Marking of Hydrants. Annex A Explanatory Material Annex B Informational References

The scope of this document is waterflow testingand marking of hydrants.