本标准为估算储罐强制通风产生的排放量提供了指南，例如，在移除液体脚跟（独立储存液体）和清洁地面储罐底部剩余的与残渣和水（污泥）混合的储存液体沉积物时可能发生的排放量。本报告中涉及的排放物是在强制通风期间离开油箱的排放物。本标准未涉及:蒸汽离开储罐后的去向（第8节讨论的控制装置效率除外）；污泥离开池后的去向（或污泥处理或处置过程中可能产生的排放）；或真空卡车的真空泵或吸入泵可能排出的排放物，如果在储罐清洗过程中使用此类设备。 换言之，本报告对储罐强制通风期间（例如储罐清洗过程中）以蒸汽形式离开储罐的挥发性有机化合物的质量进行了估算。它不涉及从储罐中移除液体或污泥后处理可能产生的排放。本标准不是进入和清洁储罐的指南。API标准2015和API推荐实施规程2016中对这些程序进行了说明。

This standard provides guidance for estimating emissions that result from forced ventilation of storage tanks such as may occur while removing the liquid heel (free-standing stock liquid) and cleaning the remaining deposits of stock liquid mixed with residue and water (sludge) from the bottoms of aboveground storage tanks.The emissions addressed in this report are those that leave the tank during forced ventilation. This standard does not address:the fate of vapors after they have left the tank (other than accounting for the efficiency of a control device, as discussed in Section 8);the fate of sludge after it has left the tank (or emissions that may occur during sludge treatment or disposal); oremissions that may be expelled by the vacuum pump of a vacuum truck or suction pump, if such devices are used in the tank cleaning process.In other words, this report addresses the estimation of the mass of volatile organic compounds that leave the tank as vapor during forced ventilation of the tank, such as may occur during the tank cleaning process. It does not address emissions that may result from the handling of liquids or sludge after such materials have been removed from the tank.This standard is not a guide for entering and cleaning storage tanks. Such procedures are addressed in API Standard 2015 and API Recommended Practice 2016.