Specifies technical delivery conditions for unalloyed and alloyed steel butt-welding pipe fittings in compliance with DIN 2605 Part 1 or 2, DIN 2615 Part 1 or 2 (at present at the stage of draft), DIN 2616 Part 1 or 2, or DIN 2617. Where such fittings fall under the scope of the regulations pertaining to plants subject to mandatory inspection as referred to in Section 24 of the Gewerbeordnung (German Trade Regulation).