SANS 13577 is a modified adoption of ISO 13577 for the Industrial furnaces and associated processing equipment — Safety Part 2: Combustion and fuel handling systems to replace SANS 329. SANS 13577 is a suite of standards comprised of 3 parts.

There are minor differences between SANS 329 and SANS 13577-2 regarding the Annexure AA which is a modified adoption of the ISO 13577-2. Although there are additional requirements to be considered as per parts 1 & 4