ASTM D1662 Standard Test Method for Active Sulfur in Cutting Oils
10. Precision and Bias
10.1 Precision - It is not practical to specify the precision of the procedure in this test method for measuring active sulfur because a round robin has not been completed.
10.1.1 Work is underway to improve and determine the proper precision of this test method. Previously obtained precision on this test method is not known to have been obtained in accordance with currently accepted guidelines (for example in Committee D-2 Research Report RR-D-2-1007, "Manual on Determining Precision Data for ASTM Methods on Petroleum Products and Lubricants").

10.2 Bias - The procedure in this test method has no bias because values of active sulfur can be defined only in terms of a test method.

11. Keywords
11.1 active sulfur test; cutting oils; metalworking oils