Measurement related devices, namely, electrical, mechanical, vacuum, nuclear and non-nuclear based devices, instruments and gauges used for calibration and material testing, namely, testing density, moisture content, moisture sensitivity, rutting and cracking resistance determination, color difference, polymer content, and asphalt content of materials used in the construction, raw materials, and manufacturing industries; Gas monitors used for stowaway detection

INSTRUMENTATION AND MEASUREMENT RELATED DEVICES, NAMELY, (A) NUCLEAR DENSITY GAUGE CALIBRATION AND VERIFICATION APPARATUS WHICH IS COMBINED WITH ANOTHER'S NUCLEAR MOISTURE DENSITY GAUGE THAT EMITS NEUTRONS AND/OR PHOTONS TO PROVIDE THE OPERATIONAL STATUS OF THE NUCLEAR MOISTURE DENSITY GAUGE AND (B) DEVICES USED IN TESTING LABORATORY EVALUATIONS OF MATERIALS PREPARED BY OTHERS FOR USE IN THE RAW MATERIALS AND CONSTRUCTION INDUSTRIES, NAMELY, APPARATUS USED TO EVALUATE AND PREPARE FOR EVALUATI...