EN 14904 – Current world performance standard. Replaced all versions of DIN 18032-2 on January 1, 2008.

DIN 2001 - Proposed standard to improve DIN 1991. Never adopted, except in Germany.

DIN 18032 part 1991 - The original DIN 18032-2 test methods, amended several times, ALL versions expired December 31, 2007.