This document outlines Accounting Standard 6 on depreciation accounting. It defines depreciation as the wearing out or loss of value of an asset due to use or age. It defines depreciable assets as those used for over a year in production, supply of goods/services, or administration. The depreciable amount is the historical cost less estimated residual value. Depreciation must be allocated systematically over the useful life of the asset using methods like straight-line or written down value. Disclosures include historical costs, depreciation for the period, accumulated depreciation, methods used, and rates if different from statutory rates.