本新标准提供了关于选择、安装、校准和验证自动罐式液位计（ATG）的指南，用于测量里德蒸汽压小于15磅/平方英寸绝对值（103 kPa）的液体碳氢化合物的液位，这些液体碳氢化合物由海船（油轮和驳船）运输。本标准还提供了有关数据收集、传输和接收要求的指南。本标准取代API标准2545的所有适用章节。

This new standard provides guidance on the selection, installation, calibration, and verification of automatic tank gauges (ATGs) for measuring the level of liquid hydrocarbons having a Reid vapor pressure less than 15 pounds per square inch absolute (103 kPa), transported aboard marine vessels (tankers and barges). This standard also provides guidance on the requirement for data collection, transmission, and receiving. This standard supersedes all applicable sections of API Standard 2545.