NBN EN 991:1995现行

Specifies a method of determining the essential dimensions and of verification of squareness of fabricated reinforced components made of autoclaved aerated (LAC) with open structure.

SS EN 991 Ed. 1 (1995) - Identical

UNE EN 991:1996 - Identical

NS EN 991 Ed. 1 (1995) - Identical

UNI EN 991:1997 - Identical

NF EN 991:1995 - Identical

I.S. EN 991:1995 - Identical

DIN EN 991 (1995-09) - Identical

ONORM EN 991:1995 - Identical

BS EN 991:1996 - Identical

NEN EN 991:1995 - Identical

SN EN 991:1995 - Identical