The LS15 Hagenstedt modified bitumen must meet specific technical requirements, including a penetration grade of 40-50, a softening point of 50-60°C, and a viscosity of 3000-5000 mPa·s at 135°C. Additionally, it should exhibit enhanced elasticity and adhesion properties, with a low-temperature flexibility of -20°C. The modified bitumen should also comply with relevant standards such as EN 14023 and EN 13300, ensuring durability and performance in asphalt applications.