Thai Industrial Standards Institute (TISI)
· Thai Industrial Standards Institute (TISI) L i s t o f C o m p u l s o r y S t a n d a r d s. Civil and construction material. 1. TIS 15 Part 12555 (2012) Portland cement Part 1 Specifiion. Effective Date : May 3, 2014. Download FullText. TIS 152562 (2019) Portland cement. Effective Date : May 16, 2022.