LISA HOUSTON, Spring, will serve a two-year term on the board of directors of the American Chemical Society beginning in 2020. She has worked 30 years in the chemical industry, beginning with a summer job that turned in a seven-year stint as a research chemist at ARCO Oil & Gas. She also was promoted as vice president of process analytics at PAC, LP, a petroleum products company where she is responsible for the financial success of two analytical instrumentation portfolios managing all aspects of the business including global sales, production, engineering and service support.