توضیحات :
NFPA 290 – Standard for Fire Testing of Passive Protection Materials for Use on LP-Gas Containers
۲۰۲۳ Edition
Chapter 1 Administration
۱-۱ * Scope. The test described in this procedure shall be used to determine the fire resistance of passive fire protection (PFP) materials applied to the exterior of LP-Gas containers.
۱-۲ Purpose. This test is designed to evaluate the fire resistance of passive fire protection (PFP) materials in a torch fire environment created by the rupture of a nearby storage vessel.
۱-۲-۱ * This test procedure subjects an insulated steel plate, simulating an LP-Gas storage vessel, to a torch fire exposure for 50 minutes. After 20 minutes of the torch fire exposure, the insulated steel plate is subjected simultaneously to the torch fire exposure and a hose stream for 10 minutes.
۱-۳ Application.
۱-۳-۱ This procedure shall be a test of materials and not a test of assemblies. If necessary, additional testing shall be performed to determine the effectiveness of the material protecting a particular assembly or fabrication.
۱-۳-۲* Although the test has been designed to reproduce conditions similar to those found in fires resulting from realistic releases of hydrocarbons, this test does not guarantee a specific degree of protection from the myriad of possible fires involving LP-Gas storage vessels or containers.
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