A Proposal to the Testing Method for Physical Composition of Waste

Noboru Tanikawa*
* Laboratory of Waste Management, Tokyo Metropolitan Research Institute for Environmental Protection
(2cho-me, Aomi, Koto-ku, Tokyo, 135-0064 Japan)

Abstract
In investigating the physical composition of waste, the classification of sampled waste should be done on a wet base and detailed classification of items should be established to make the results useful. A practical proposal for the purpose is presented.
There are some errors in the results of physical composition of waste because of sampling, preparing, and classifying of the waste. Therefore, the results should be evaluated as approximate figures considering other data and their variation trend during the period of several years.

Key words: waste, physical composition, classification, wet base, dry base