Polystyrene black intrinisically static-dissipative (ISD) reels and polystyrene antistatic-coated reels used for shipping integrated circuits in tape-and-reel configuration were tested for surface-resistance performance at low (11.7%) and high (50.3%) relative humidity (RH) after 1 hour and 48 hours respectively. Static-charge decay also was measured under low-humidity conditions. The test resu