GB/T 18173.2-2014 "Polymer Water proofer Part 2: Waterstop" specifies the classification, marking, requirements, test methods, inspection rules, marking, Encasement, transportation and storage of waterstops in polymer Water proofer. This standard applies to all kinds of rubber waterstops poured into concrete or attached to concrete surfaces, including water-expanded rubber composite waterstops, rubber waterstops with steel edges, rubber waterstops for joint joints in immersed tunnels and rubber composite waterstops. A series of relevant test method standards are quoted in the standard to ensure the performance stability and Reliability of waterstops under different application conditions.