The leakage detection and repair project, referred to as LDAR project, is a technology to control the fugitive emission of VOCs in Shanghai petrochemical enterprises. It is mainly through the systematic method to detect and repair the potential leakage sources in the enterprise, such as valves, pumps, connectors, flanges, agitators and other process equipment, so as to eliminate VOCs leakage caused by leakage sources, so as to control environmental pollution and reduce material loss of enterprises.

The work of this technology shall meet the requirements of local and industrial leakage and detection, and strictly implement the strict part of the following standards. The main standards are as follows：

Technical guidelines for the detection of volatile organic compounds emitted from leaking and open liquid surfaces

Guidelines for leak detection and repair in petrochemical enterprises

Specification for VOC leakage detection in petrochemical plants

Guidelines for investigation of VOCs Pollution Sources in petrochemical industry

And local standards

Advantage 1：

With rich experience, the LDAR team of pony testing group has participated in LDAR projects for many times, including those in refining, chemical, pharmaceutical, storage and transportation, coating and other industries. Proficient in various current mainstream LDAR technologies, such as tagging method, photographing method and "tagging + photographing" method. The LDAR detection of Penney test is compatible with various filing methods, and can accurately find the relevant sealing points for testing.

Advantage 2：

All LDAR testing engineers of pony testing group are regular employees of penni, with health certificate, and they can only work after formal training and assessment. Each project has a LDAR testing team. The LDAR testing team is composed of project director and LDAR testing engineer. The project director has Bachelor degree or above, major in chemical engineering and environment, has been engaged in LDAR work for more than 1 year and has participated in more than 10 medium and large-scale LDAR projects. Test engineer with college degree or above, major in chemical engineering and environment.

Advantage 3：

       For the long-term LDAR detection project of pony testing group, the fixed project director and basically fixed inspection engineer are responsible for the detection task of the project, which is conducive to the understanding of the device, accurate and rapid finding of relevant sealing points, so as to effectively communicate with the owner and provide better service.

Advantage 4：

        LDAR detection team will analyze the leakage causes of all detected leakage points according to the site conditions, and timely communicate with the owner to find out the leakage elimination method quickly and accurately.

Advantage 5：

       pony testing group is a comprehensive testing organization. All testing processes are in accordance with ISO17025 standard to ensure the quality of testing, and is responsible for the authenticity of all testing data。

Advantage 6：

       The instruments used in LDAR detection of pony testing group are all made of famous brand Seymour Fisher, tva-2020c, with reliable data。

Advantage 7：

       In the process of LDAR detection, project change and maintenance services can be added, such as statistics of lost tag card, replacement of tag card, statistics of missing or wrong points of filing, evaluation of process change and proposal of change scheme