The Russian process piping stress analysis code. Includes plastic piping (HDPE piping) stress analysis, cryogenic pipe stress analysis, high temperature stress analysis with creep effect consideration, vacuum piping stability. The code is completely different from ASME B31.3 code becase it was created indeendently for a long time, has more details. Stress analysis results are completely different from B31.3 code. The ASME B31.3 code can't be used for Russian process piping design projects.