Proceedings of the Annual Conference of The Japan Society of Waste Management Experts
The 19th Annual Conference of The Japan Society of Waste Management Experts
Session ID : P1-A1-10
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Lifespan of commodities - definition, methods and existing data
*Masahiro OguchiTomohiro TasakiShinsuke MurakamiSeiji HashimotoIchiro Daigo
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Abstract

Material flow and stock accounting of commodities is important for planning and implementation of recycling and appropriate waste treatment or utilization of stock in society. Information of life span distribution of commodities is indispensable for such estimation and some dozen of research and survey on life span distribution have been reported. However, the definition and the type of the distribution vary by research or survey, therefore, the data might be utilized for estimation in inappropriate way. In this context, the authors organized the definition, type and estimation methodology of life span distribution of commodities and discussed the pros and cons of each of them from the viewpoint of utilization for flow and stock accounting. Then, the authors reviewed existing data of life span distribution and compiled them in a database.

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© 2008 Japan Society of Material Cycles and Waste Management
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