Currently, Beijing Chemical Products Quality Supervision and Inspection Station conducted a comprehensive test on our KLS product. The test items are in accordance with the DB11/552-2008 standard of vehicle urea solution in Beijing, including over 20 testing items, such as urea content, concentration, refractive index and undissolved substance. The result shows that the KLS product completely conforms to the relative requirements.
  Beijing Chemical Products Quality Supervision and Inspection Station is the testing institute with the third-party impartial status. It is approved by the No.187(2005) document of Beijing Quality Technology Supervision Bureau. And it also possesses the certificate issued by China National Accreditation Board for Laboratories. KLS product successfully passed the test of the institute, showing that in Beijing and other cities which take the lead in carrying out the State IV emission standard, KLS product completely meets the needs of state IV heavy trucks and passenger cars.