Cross References:ISO 9227ISO 23269-1EN 136:1998EN 137:2006EN 469:2005EN 837-1:1996EN 13274-2:2001EN 13274-3:2001EN 13274-4:2001ISO 22488EN 132:1999EN 134:1998EN 12021:1998All current amendments available at time of purchase are included with the purchase of this document.