posts installed by the manufacturer four installed manually and four installed mechanically the delineators will be hit ten times four posts for glancing bumper hits and four posts for wheel hits a standard sedan with a bumper height of approximately 18 u2033 while traveling at a speed of 55 u2212 2 mph will be used for impact testing five of the impacts will be at an ambient temperature of 32 u2212 5 degrees f and the remaining five impacts at an ambient temperature of 85 u2212 5 degrees f the test vehicle shall impact four of the posts at an angle perpendicular to the front of the posts the same test samples will be used for the ten hits two flexible posts will be used for weatherometer testing a glancing hit is defined as one on the bumper near the vehicle headlight the delineators shall be installed a minimum of eight hours prior to being hit the testing agent will inspect each post after each impact and document the following 1 any splits cracks breaks or other forms of deformation or distress 2 the percent list to vertical two minutes after each impact 3 the approximate percentage of the reflective.