The Department shall charge the following fees to test mass laboratory standards: If the standard is less than or equal to 5 kilograms, the fee is $25 a unit; If the standard is greater than 5 kilograms but less than or equal to 30 kilograms, the fee is $60 a unit; and If the standard is greater than 30 kilograms but less than or equal to 600 kilograms, the fee is $125 a unit.