Are the pipelines within LPG, LNG, and CNG stations considered industrial pipelines or utility pipelines? What is the inspection rate for internal metal pipes?

The pipelines inside the station belong to the GC category of industrial pipelines; for non-destructive testing, CJJ33 shall be referred to

There are separate standards for various media, and there are also overlaps between these standards. It’s hard to define what constitutes a pipeline or not, depending on how one understands the standards.

The company holds first-level qualifications in the following areas: municipal engineering, petrochemical industry, mechanical and electrical installation, boilers, anti-corrosion and insulation work. It also has second-level qualifications in construction, fire protection, steel structures, and decoration. There are third-level qualifications in environmental protection, specialized mechanical and electrical contracting, general electrical contracting, and foundation work. The company possesses labor-related qualifications as well as those for construction, installation, testing, and maintenance work. It is qualified to work on pressure pipelines of types GA1, GB1, GB2, GC1, and GD1. In addition, it has first-level qualifications in construction, and second-level qualifications in mechanical and electrical systems, municipal engineering, petrochemical industry, water resources management, road construction, road surface and subgrade work, curtain walls, environmental protection, steel structures, anti-corrosion measures, fire protection, and decoration. It also has third-level qualifications in mechanical and electrical systems for construction, general electrical contracting, formwork and scaffolding work, as well as labor-related qualifications

The station facilities belong to GC industrial pipelines, in accordance with GB20801.5-2020