1. Grouped electrical cables. NFPA Fire Hazard Study, Fire Record Bulletin HS-6, National Fire Protection Association, Boston, MA (1966).
2. ASTM D229-86, Standard Methods of Testing Rigid Sheet and Plate Materials Used for Electrical Insulation, ASTM Fire Test Standards, third edition, ASTM E-5 on Fire Standards, Amer. Soc. Testing Mater., Philadelphia, PA (1990).
3. ASTM D350-84, Standard Test Methods for Flexible Treated Sleeving Used for Electrical Insulation, ASTM Fire Test Standards, third edition, ASTM E-5 on Fire Standards, Amer. Soc. Testing Mater., Philadelphia, PA (1990).
4. ASTM D470-82, Standard Methods of Testing Crosslinked Insulations and Jackets for Wire and Cable, ASTM Fire Test Standards, third edition, ASTM E-5 on Fire Standards, Amer. Soc. Testing Mater., Philadelphia, PA (1990).
5. ASTM D876-84, Standard Methods of Testing Nonrigid Vinyl Chloride Polymer Tubing Used for Electrical Insulation, ASTM Fire Test Standards, third edition, ASTM E-5 on Fire Standards, Amer. Soc. Testing Mater., Philadelphia, PA (1990).