ASTM D6185 for evaluating compatibility of binary mixtures of lubricating greases
ASTM D6185 standard practice for evaluating compatibility of binary mixtures of lubricating greases
8. Report
8.1 Report the following information:
8.1.1 Identity of the constituent greases and the mix-ratios of the mixtures tested,

8.1.2 Whether the greases were found compatible or incompatible, and

8.1.3 If found incompatible, report the mixing ratio(s) found incompatible and in which test(s).

8.2 If secondary testing procedures were used, report 8.1.1-8.1.3 and, in addition, report the test methods used in secondary testing and whether the greases were found compatible or incompatible.

8.2.1 If found incompatible, report the mixing ratio(s) found incompatible and in which test(s).

9. Precision and Bias
9.1 Repeatability Limits for Primary Test Methods:

NOTE 6 - For complete precision and bias statements see the pertinent test methods. Inasmuch as compatibility testing is not usually a specification requirement, reproducibility is not applicable.

9.1.1 Dropping Point - See Table 1.

9.1.2 Penetration - See Table 2.

9.2 Reproducibility Limits for Primary Test Methods - Inasmuch as this practice is intended for internal use by individual companies and not intended for specifications, reproducibility is not applicable.

9.3 Bias - Inasmuch as this practice is intended for internal use by individual companies and not intended for specifications, bias is not applicable. In addition, there is no bias for the test methods cited herein because the values for dropping point and penetration can be defined only in terms of the respective test methods.

10. Keywords
10.1 binary mixtures; compatibility; incompatibility; lubricating grease; mixtures