D7899 does contain a precision statement. The method was approved in 2013 and we had five years to publish a D7899 version with a precision based on an ILS. An ILS will be carried in the coming three months and a research report will be written. As soon as the research report will be approved, the method will be updated.
Keywordscondition monitoring; diesel engine oils; dispersancy; in-service petroleum lubricants; lubricants; oils; oxidation; soot;
Draft Under Development