untitled Li ce ns ed C op y W an g B in , I S O /E X C H A N G E C H IN A S T A N D A R D S , 1 2/ 10 /2 01 0 08 5 2, U nc on tr ol le d C op y, ( c) B S I BRITISH STANDARD BS EN 13848 5 2008 +A1 2010[.]
Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/10/2010 08:52, Uncontrolled Copy, (c) BSI BRITISH STANDARD Railway applications — Track — Track geometry quality — Part 5: Geometric quality levels — Plain line ICS 93.100 12&23