This video shows a flow test for Quality Control per ASTM C939 (Flow Cone Method) and ASTM C1107 (Standard Specification for Non-Shrink Grouts). The grout shown is US SPEC's GP Grout. When testing fluid consistency, pour the grout into the flow cone until it reaches the tip of the needle. Then measure the efflux time of the grout passing through the flow cone. Fluid grout should pass through the flow cone between 10 and 30 seconds.