This Standard is formulated for the purpose of implementing the Environmental Protection Law of the People's Republic of China and the Law of the People's Republic of China and Law of the People's Republic of China on the Prevention and Control of Atmospheric Pollution, controlling the pollution by crankcase pollutants from heavy-duty vehicles equipped with P.I engines, and improving ambient air quality. It specifies the application approval, type examination test methods & limits as well as production consistency check for crankcase pollutants from heavy-duty vehicles equipped with P.I engines. It is applicable to heavy-duty vehicles equipped with P.I engines. The engines under test should include those that have taken anti-leakage measures but exclude those engines that will not operate properly even if minor leakage exists in structure (e.g. horizontal type engines).
(This English version is for your reference only.In case any discrepancy exists between the Chinese and English context, the Chinese version shall prevail.)