NFPA 258 : 2001

Chapter 1 General
1.1 Scope
1.2 Significance
1.3 Summary of method
Chapter 2 Test apparatus
2.1 Test apparatus
2.2 Test chamber
2.3 Radiant heat furnace
2.4 Specimen holder
2.5 Framework for support of the furnace and
      specimen holder
2.6 Photometric system
2.7 Radiometer
2.8 Thermocouples for determining chamber wall
      temperature
2.9 Portable recorder or readout meter
2.10 Manometer for chamber pressure measurement
2.11 Multiple flamelet burner with premixed
      air-propane fuel
Chapter 3 Test specimens
3.1 Specimen description
3.2 Number of test specimens
3.3 Specimen conditioning
3.4 Specimen mounting
Chapter 4 Test procedure
4.1 Test room
4.2 Equipment cleaning
4.3 Warm-up of furnace
4.4 Burner positioning
4.5 Procedures
Chapter 5 Calculations
5.1 Specific optical density
5.2 Maximum specific optical density
5.3 Light transmittance
Chapter 6 Report
6.1 Documentation
6.2 Test termination
Appendix A Explanatory material
Appendix B Apparatus construction and calibration
Appendix C Suggested report form - smoke density
            chamber
Appendix D Commentary
Appendix E Referenced publications
Index

Specifies procedures for measuring smoke generated from solid materials in thicknesses up to 1 inch. Intended for research purposes only and is not a basis for determining ratings for building codes or other regulatory purposes.