Leakage Detection and repair project, referred to as LDAR project, is the current petrochemical enterprise control VOCs unorganized emission 

technology. Mainly through the systematic method will exist in the enterprise potential leakage sources, such as valves, pumps, connectors, flanges, 

agitators and other process equipment, detection, maintenance, eliminate the leakage source of VOCs leakage, so as to achieve the control of environmental 

pollution and reduce the purpose of enterprise material loss.

Reference law:

The work undertaken by this technique shall meet, local and industrial leakage and detection requirements, 

and strictly implement the strict parts of the following standards. 

The main standards implemented are as follows:

Technical Guidelines for the Detection of Volatile Organic Compounds Emitted from Leaks and Open Levels

Guidelines for Leakage Detection and Remediation in Petrochemical Enterprises

Specification for Volatile Organic Compound Leakage Detection in Petrochemical Installations

Guidelines for VOCs Pollution Source Investigation in Petrochemical Industry