Specifications include, but are not limited to: ENVIRONMENTAL ROOM #1 - DE-ICING SALT SCALING ENVIRONMENTAL ROOM Automated system for testing according to ASTM C672 standard Temperature range: at least covering the range of -18 to 23oC required for conducting testing in compliance with ASTM C672 The chamber should have humidity control system only for the period of 21 to 25 C temperature, relative humidity of the chamber should be maintained between 45% to 55%. o Vendors: please provide price for humidity control as an option. The chamber should have temperature monitoring system for chamber temperature and concrete temperature (using sensor embedded in the concrete sample). Temperature control system should be re-programmable or adjustable by the users (we may have to change heating and freezing cycles depending on the coming results). Operators can adjust the temperature, humidity, rate of heating, duration of test, rate of freezing within the capacity limit of the system. All the parameters can be modified with password in the control system