DIN 4668:1968-09

Отменен

Gas Cylinders; Screw Threads for Valve Sockets, Neck Rings and Protecting Caps — 2 стр.

Заменен на

DIN EN 962:1996-09

ICS

21.040.20 Inch. Including Whitworth screw threads / Дюймовые резьбы. Включая резьбы Витворта