Tilbaketrukket
TBK 5-6:1996
NS-EN 13480-3:2002
NS-EN 13480-3:2002/A3:2009
NS-EN 13480-3:2002/A4:2010
NS-EN 13480-3:2002/A1:2005
NS-EN 13480-3:2002/A2:2006
NS-EN 13480-3:2002/A5:2012
NS-EN 13480-3:2012