T/NBSES 004-2024 Management guideline for volatile organic compounds (VOCs) leak detection and repair (LDAR) in the chemical industry

Scope

Main technical content: In large-scale industrial enterprises such as petrochemical and synthetic resin plants, leaks from equipment dynamic and static sealing points are one of the main sources of VOCs emissions. Due to the large number and widespread distribution of these sealing points, although the leakage volume from individual sealing points may not be significant, the cumulative total emissions can be quite substantial. Leaks from equipment dynamic and static sealing points are often hidden and intermittent, making it difficult to detect and control them in real time using conventional monitoring methods. Moreover, some enterprises lack awareness of the management of leak detection and repair for equipment dynamic and static sealing points, and lack systematic detection and maintenance plans, resulting in long-term failure to effectively resolve leakage issues. This standard is designed for the management of volatile organic compound (VOC) leak detection and repair (LDAR), providing technical support for the detection and repair of leaks from equipment dynamic and static sealing points in supervised enterprises in industrial parks.

Development Information

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