NEMA LL 6-1999 covers integral electronic compact fluorescent lamps. Developed to establish a uniform method of sample preparation for integral electronic compact fluorescent lamps in order to minimize the inherent variability associated with TCLP testing of such lamps. Specifies other important aspects related to the leaching process that are not specifically defined for lamps by the EPA's SW-846 Test Methods for Evaluating Solid Waste (Physical/Chemical Methods), but that have contributed to test variability if not properly controlled.