Abstract: An object of the present invention is to provide a method for extracting particulate matter from the smoke of a heated smoking article, an extraction container, an extract liquid, and a toxicity test method involving use of the extract. The method of the present invention comprises: (1) collecting particulate matter in the smoke of a heated smoking article in two or more filters capable of capturing the particulate matter; (2) stacking the two or more filters; and (3) squeezing the stacked filters to extract components adhered to the filters. An extraction container 1a of the present invention comprises: an accommodation area 8 capable of accommodating two or more filters 7 in a stacked state; one or more squeezing members (2a, 3a) for squeezing the filters 7 accommodated in the accommodation area 8 in a stacked state; and a reservoir 10 communicating with the accommodation area 8.

Abstract: A sales system is disclosed capable of effective afterward use of service data once obtained with a customer in a shop. Service members in the shop have their own portable data terminal units 3a to 3c for inputting data corresponding to contents of business talks with customers to form service data satisfying predetermined items. The service data is radio transmitted and stored in a shop computer 1. An initial business talk with a customer visiting the shop may not produce sales, but the service data obtained at that time are stored in a shop computer. The stored service data is made use of for transmitting purchase promotion data to the customer to thereby produce a change of a transaction with the customer.