AS NZS 2891.7.1 pdf download – Methods of sampling and testing asphalt Method 7.1: Determination of maximum density of asphalt—Water displacement method 5 MATERIALS The following materials are required: (a) Potable water. (b) Optional detergent solution with 5 mL of commercial grade concentrate diluted with 1000 mL of water. NOTE: Use of detergent in the water whilst vacuuming will increase...