This chapter is about learning to become familiar with the layout and contents of API 570. It forms a vital preliminary stage that will ultimately help you understand not only the content of API 570 but also its cross-references to the other relevant API and ASME codes.
API 570 is divided into nine sections (sections 1 to 9), four appendices (appendices A to D), three figures and four tables. Even when taken together, these are not sufficient to specify fully a methodology for the inspection, repair and rerating of pipework systems. To accomplish this, other information and guidance has to be drawn from the other codes included in your API document package. Figure 2.1 shows how the codes work together.
So that we can start to build up your familiarity with API 570, we are going to look at some of the definitions that form its basis. We can start to identify these by looking at the API 570 contents∕index page. This is laid out broadly as shown in Fig. 2.2.