Almost certainly . These files are often missing critical annexes, have incorrect pressure values (some copies state 100 kPa instead of 500 kPa), or contain malware. Never run a downloaded standards PDF without scanning it in a sandbox.
specifies a method for determining how deeply water can penetrate hardened concrete that has been water-cured . The most current version is BS EN 12390-8:2019 , which supersedes the 2009 edition Accessing the Standard bs en 12390-8 pdf free download