You may hear and see something unusual this week as Eastman Chemical Company has announced it will conduct site-wide testing of its hazardous vapor release alerting system on Wednesday and Thursday, Nov. 16-17.The annual testing will begin at 8 a.m. and end by 3 p.m. on both days, according to a news release from Eastman.Eastman’s blue light alert and alarm systems will activate and may be visible to those nearby.