ASTM E1057-15R20E01
Standard Practice for Measuring Internal Rate of Return and Adjusted Internal Rate of Return for Investments in Buildings and Building Systems
| Language: | English |
| Released: | 2020-05-05 |
| Pages: | 12 |
| Standards number: | ASTM E1057-15R20E01 |
| Standard number: | E1057-15R20E01 |
| Released: | 01.04.2020 |
| Status: | Active |
| Pages: | 12 |
| Section: | 04.11 |
| Keywords: | adjusted internal rate of return; building economics; discounting; economic evaluation methods; engineering economics; internal rate of return; net benefits; net savings; overall rate of return; payback; savings-to-investment ratio; terminal value ; |
1.1 This practice covers a procedure for calculating and interpreting the internal rate of return (IRR) and adjusted internal rate of return (AIRR) measures in the evaluation of building designs, systems, and equipment.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.