[ petrochemical and chemical testing instrumentation, namely, flashpoint and flammability testers, vapor-pressure and vapor/liquid-ratio testers, fourier transform infrared spectroscopes, penetrometers and benchtop tensile testers, asphalt (bitumen) testers, color analyzers, interface detectors for liquids in storage tanks, density testers for testing the density of solids, bitumen, asphalts, and liquids ]