NFPA 251 : 2006
Withdrawn
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FIRE RESISTANCE OF BUILDING CONSTRUCTION AND MATERIALS
Hardcopy
25-08-2021
English
01-01-2006
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 Mandatory Sections. (Reserved)
Chapter 3 Definitions
3.1 General
3.2 NFPA Official Definitions
3.3 General Definitions
Chapter 4 Control of Fire Tests
4.1 Temperature-Time Curve
4.2 Furnace Temperatures
4.3 Temperatures of Unexposed Surfaces of Floors, Roofs,
Walls, and Partitions
4.4 Furnace Pressure
Chapter 5 Test Specimen
5.1 Specimen
5.2 Protection and Conditioning of Test Specimen
Chapter 6 Conduct of Fire Tests
6.1 Fire Resistance Test
6.2 Hose Stream Test
Chapter 7 Tests of Bearing Walls and Partitions
7.1 Size and Restraint of Specimen
7.2 Loading
7.3 Conditions of Acceptance
Chapter 8 Tests of Nonbearing Walls and Partitions
8.1 Size and Restraint of Specimen
8.2 Conditions of Acceptance
Chapter 9 Tests of Columns
9.1 Size and Connections of Specimen
9.2 Loading
9.3 Conditions of Acceptance
Chapter 10 Alternative Test of Protection for Structural
Steel Columns
10.1 Application
10.2 Size and Character of Specimen
10.3 Temperature Measurement
10.4 Exposure to Fire
10.5 Conditions of Acceptance
Chapter 11 Tests of Floor and Roof Assemblies
11.1 Application
11.2 Size and Characteristics of Specimen
11.3 Loading
11.4 Temperature Measurement
11.5 Conditions of Acceptance - Restrained Assembly
11.6 Conditions of Acceptance - Unrestrained Assembly
Chapter 12 Tests of Loaded Restrained Beams
12.1 Application
12.2 Size and Characteristics of Specimen
12.3 Loading
12.4 Conditions of Acceptance
Chapter 13 Alternative Procedure for Loaded Beams
13.1 Application
13.2 Temperature Measurement
13.3 Conditions of Acceptance
Chapter 14 Alternative Test of Protection for Solid
Structural Steel Beams and Girders
14.1 Application
14.2 Size and Character of Specimen
14.3 Temperature Measurement
14.4 Conditions of Acceptance
Chapter 15 Performance of Protective Membranes in Wall,
Partition, Floor, or Roof Assemblies
15.1 Application
15.2 Characteristics and Size of Sample
15.3 Temperature Performance of Protective Membranes
15.4 Conditions of Performance
Chapter 16 Report of Results
16.1 Fire Resistance Rating as Determined by Test
16.2 Test of Floor and Roof Assemblies
16.3 Performance of Protective Membranes
16.4 Tests of Load-Bearing Assemblies
Annex A Explanatory Material
Annex B Operating Criteria for Fire Tests
Annex C Recommendations for Thermocouple Pads
Annex D Report Information
Annex E Guide for Determining Conditions of Restraint for
Floor and Roof Assemblies and for Individual Beams
Annex F Method of Correcting Fire Endurance for Concrete
Slabs Determined by Unexposed Surface Temperature
Rise for Nonstandard Moisture Content
Annex G Commentary
Annex H Informational References
Index
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