Accounting Standard 26 outlines standards for intangible assets. It defines intangible assets as non-physical assets including scientific/technical knowledge, software, patents, trademarks and more. It provides guidance on primary and secondary recognition of intangible assets acquired through purchase, amalgamation, government grants, or asset exchanges. It also addresses treatment of research and development expenditures. The standard specifies acceptable methods for amortizing intangible assets over their useful lives.