scope:

The AD 2000-Merkblätter of the HP Series deal with the rules covering the design and manufacture of pressure vessels and pressure vessel components that are wholly or predominantly under static load1), accessory housings and their joining with non-pressure-containing components, e.g. by welding. They follow up the AD 2000-Merkblätter of the W Series and specify the tests to be performed before, during and after manufacture, either by the relevant third party or by the manufacturer. For piping, AD 2000-Merkblätter HP 100 R, HP 110 R, HP 120 R and HP 512 R apply. For accessory housings, AD 2000-Merkblatt A 4 shall also be noted.

If the AD 2000-Merkblätter of the HP Series contain no provisions for the processing and testing of individual materials, agreement shall be reached between the manufacturer, customer/user and relevant third party. For non-metallic materials, the AD 2000-Merkblätter of the N Series shall also be noted.

Where a vessel is composed of several chambers, it shall be classified in the highest category applicable to the individual chambers. If a chamber contains several fluids, classification shall be on the basis of whichever fluid requires the highest category.

The AD 2000-Merkblätter of the HP Series include the following:

HP 0 - General principles of design, manufacture and associated tests

HP 1 - Design and construction

HP 2 - Procedure qualification testing for joining processes

/1: Procedure qualification testing for welding joints

HP 3 - Welding supervisors, welders

HP 4 - Test supervisors and testers in non-destructive testing

HP 5 - Manufacture and testing of joints

/1: Principles of welding practice

/2: Production testing of welds, testing of parent metal after post-weld heat treatment

/3: Non-destructive testing of welded joints

Appendix 1: Minimum requirements for non-destructive testing methods

HP 7 - Heat treatment

/1: General principles

/2: Ferritic steels

/3: Austenitic and austenitic-ferritic steels

/4: Aluminium and aluminium alloys

HP 8 - Testing

/1: Testing of pressings made from steel, aluminium and aluminium alloys

/2: Testing of steel sections

/3: Testing of shaped parts made from non-alloy and alloy steels

HP 30 - Performance of pressure tests

HP 100 R - Construction regulations - Metal piping

HP 110 R - Construction regulations - Piping made of glass reinforced thermosetting plastics (GRP) with and without liner

HP 120 R - Construction regulations - Thermoplastic piping

HP 511 - Design examination

HP 512 - Final testing and pressure testing

HP 512 R - Construction regulations - Design examination, final testing and pressure testing of piping

HP 801 - Special pressure vessels

(Numbers 4, 8, 10, 11, 13 to 15, 18, 19, 23, 25 to 27, 29, 30, 34, 37 to 39)