These requirements cover equipment for the detection of leakage from underground flammable liquid storage tanks by directly or indirectly measuring the presence of liquid, or changes in the level of liquid over a period of time. These requirements provide for the determination of the capability of equipment for the measurement of actual or potential leakage rates within defined statistical probabilities. These requirements do not cover non-volumetric leak detection equipment or methods. Published 1/31/1992.
These requirements cover equipment for the detection of leakage from underground flammable liquid storage tanks by directly or indirectly measuring the presence of liquid, or changes in the level of liquid over a period of time. These requirements provide for the determination of the capability of equipment for the measurement of actual or potential leakage rates within defined statistical probabilities. These requirements do not cover non-volumetric leak detection equipment or methods. Published 1/31/1992.