For engineers and drafters looking at the EJMA Standard PDF, the document is typically structured around several critical pillars of design:
While the EJMA organization sells printed copies of the standard, the has become the industry standard for several practical reasons: Ejma Standard.pdf
It is important to note the relationship between EJMA and other codes. For engineers and drafters looking at the EJMA
While EJMA provides the calculation engine, ASME codes often act as the governing "law" for the overall piping system. Drafters and engineers must ensure they are meeting the specific code requirements of their project while utilizing EJMA formulas. Ejma Standard.pdf