api2000API2000 - Free download as PDF File (.pdf), Text File (.txt) or view presentation slides on. The document discusses the venting requirements for low-pressure storage tanks. It outs the causes of overpressure and vacuum in tanks,Indice API 2000.pdf - Free download as PDF File (.pdf), Text File (.txt) or read on for free. This document provides a summary of API Standard 2000, which establishes guides for venting