Calcium Chloride Test Method. ASTM F 1869, Standard Test Method for Measuring Moisture Vapor Emission Rate (MVER) of Concrete Subfloor Using Anhydrous Calcium Chloride This method has and is the industry standard. Calcium Chloride Test allows you to achieve a quantitative figure which will coincide with floor manufactures requirements. Please note: The measurement obtained performing a Calcium Chloride only reflects the current condition of the concrete. Results will reflect a figure of weight in pounds of water evaporations giving off over 1000 ft2 over a 24hr period. The test must be done when the building is at the same temperature and humidity.