​This service enables users to make electronic payments to obtain a purchase receipt for the tests and services provided by the Government Center for Testing, Quality Control, and Research. The service allows users to purchase one or more tests by searching using the account item number or the test name, then selecting the required tests, determining their quantities and specifications easily and conveniently. Finally, the payment can be made electronically through KNET to obtain the purchase receipt, which enables the user to conduct the tests directly upon visiting the Government Center for Testing, Quality Control, and Research.