AD2000 Merkblatt is a German, organizational certification that applies to pressure-bearing accessory housings and safety accessory housings for pressure vessels and piping with a maximum allowable pressure (PS) exceeding 0.5 bar.
The AD 2000 body of regulations can be applied to satisfy the basic safety requirements of the Pressure Equipment Directive, principally for the conformity assessment in accordance with Modules "G" and "B + F".
ASME SEC8, Div.1
ASME SEC8, Div.2
Section VIII is divided into 3 sections, each of which cover different vessel specifications. Division 1 addresses the requirements for design, fabrication, inspection, testing, and certification. Division 2 provides requirements on materials, design, and nondestructive examination standards. Division 3 provides guidelines for pressure vessels operating at internal or external pressures above 10,000 psi. All 3 Divisions reference many other standards as outlined below.
Division 1 largely contains appendixes, some mandatory and some non-mandatory, that detail supplementary design criteria, nondestructive examination techniques, and inspection acceptance standards for pressure vessels.
Division 2 contains requirements for the materials, design, and nondestructive examination techniques for pressure vessels. Compared to Division 1, Division 2’s standards are far more rigorous, but allow for higher stress intensity values. The rules put forth in Division 2 can also apply to human occupancy pressure vessels, primarily in the diving industry. Like Division 1, Division 2 contains guidelines that apply to the use of the single ASME certification mark as it applies to the U2 and UV designators.