作者介绍了一种专门适用于处理含石墨及油污的过滤器砂滤料的清洗剂TS—198。，它既能去除油污，又能对砂滤料上所吸附的石墨具有剥离作用。试验表明，TS—198对于附着在砂滤料上的石墨及油污清洗效果，其综合性能超过美国DREW公司清洗剂D—26。

This article introducesa new type of detergent TS-198, which is specially suitable for processing sand filter material containing graphite and greasy dirt in filter tank.It can not only clean greasy dirt but also stripe the graphite adhering to the grains of the sand filter material.The experiment shows that TS-198 has superior cleaning effect on graphite and greasy dirt adhering to the sand filter material.Its comprehensive qualities surpass that of detergent D-26 of DREW Company.