All the grades available in Indian Standards lS: 4454 (Part-ll): 2001, lS: 11169 (Part-l): 1984, lS: 6603: 2001, lS 6527: 1995 & lS 6528: 1995 shall remain outside the purview of the Steel and Steel Products (Quality Control) Order, 2018 till 17th August, 2019.