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440, INTRODUCTION This report details the evaluation of a nonbearing wall assembly in determin- ing the duration for which it will contain a fire and maintain its structural integrity during a predetermined test exposure. The test was conducted in accordance with the American Society for Testing and Materials E 119-88 "Standard Test Methods for Fire Tests of Building Construction and Materials," Tests of Nonbearing Walls and Partitions. The E 119 test exposes a specimen to a standard fire exposure controlled to achieve specified temp- eratures throughout a specified time period, followed by the application of a specified standard fire hose stream. The results of this test are intended to provide data to enable regulatory agencies to determine the suitability of assemblies for use in locations where fire resistance of a specified duration is required. Any variations from the conditions that are tested may sub- stantially alter the performance characteristics of the assembly. The E 119 test method provides a relative measure of the fire performance of comparable assemblies under specific fire exposure conditions. However, the standard fire exposure may not be representative of all fire conditions which may vary with changes in the amount, nature, and distribution of fire loading, ventilation, compartment size and the configuration, and heat sink characteristics of the compartment. It does not provide full information as to performance of assemblies with components or lengths other than tested, nor simulation of the fire behavior of joints between building elements, such as wall-wall connections. Although the standard does not contain specific criteria for judging the impact of through joints or "poke-through" devices, such as electrical or telephone outlets, it should be recognized that these components should be evaluated if they constitute a significant part of the tested assembly. The method does not evaluate the degree by which the assembly contributes to the fire hazard by generation of smoke, toxic gases, or other products of combustion, nor the passage of smoke or other products of combustion through the assembly. This standard should be used to measure and describe the properties of materials or assemblies in response to heat and flame under controlled lab- oratory conditions. It should not be used to describe or appraise the fire hazard of materials or assemblies under actual conditions. However, results of this test may be used as elements of fire risk assessment which take into account all of the factors which are pertinent in an assessment of the fire hazard of a particular end use. All test data are on file and available for review by authorized persons. TEST PROCEDURE The test furnace is equipped with 10 adjustable gas ports and 10 adjustable air ports. The sides of the furnace have windows to allow viewing of the sample while under the fire exposure. The maximum sample exposure area of the furnace is nominally 11 feet in width by 11 feet in height. For &stirkei COMMERCIAL TESTIIiG COmPAnY