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Scope

1.1 This practice presents a procedure for calculating and interpreting benefit-to-cost ratios (BCR) and savings-to-investment ratios (SIR) as an aid for making building-related decisions.

1.2 A basic premise of the BCR and SIR methods is that future as well as present benefits and costs arising from a decision are important to that decision, and, if measurable in dollars, should be included in calculating the BCR and SIR.

1.3 Dollar amounts used to calculate BCR and SIR are all discounted, that is, expressed in time-equivalent dollars, either in present value or uniform annual value terms.

Keywords

Building economics; Energy-conservation; benefit-to-cost/savings-to-investment ratios (for buildings/building; systems), practice; ICS Number Code 91.010.20 (Contractual aspects)

To find similar documents by ASTM Volume:

04.11 (Building Constructions (I): E72 - E2110)

To find similar documents by classification:

91.010.20 (Contractual aspects)

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