The present invention discloses compounds, compositions, and methods of using such compounds and compositions to inhibit, reduce, prevent, and remove biofilms. In an embodiment, the percussion drilling assembly comprises a fluid conduit including a tubular body having a first end, a second end, a through passage extending between the first end and the second end, and an inlet port in fluid communication with the through passage. Emission measurement equipment is located at an inlet and outlet of an SCR of the furnace and thermocouples are located in tubes of the furnace, wherein the responses can be measured to obtain operating data. For example, the fishing lure may be a fishing fly having a hollow body filled with trapped air. The invention further relates to a device for determining the quality of seal of a test object, by means of which the above method can be carried out.