ASTM D6375 Standard Test Method for Evaporation Loss of Lubricating Oils by Thermogravimetric Analyzer (TGA) Noack Method
10. Report
10.1 Report the TGA Noack volatility of the test lubricant, as determined in 9.5.2, to the closest 0.01 mass percent.
11. Precision and Bias
11.1 On the basis of an interlaboratory round robin consisting of nine laboratories testing eight oils with TGA instruments from five different manufacturers, the following precision and bias were determined for this procedure.
11.2 Repeatability - Two determinations made on the same sample within a short interval of time, by the same operator using the same TGA equipment, in the normal and correct operation of this test method, should differ by more than the following value only in one case in twenty.
11.3 Reproducibility - Two determinations made on the same sample by different operators or using different TGA equipment, in the normal and correct operation of this test method, should differ by more than the following value only in one case in twenty.
11.4 Bias - Within the repeatability of this test method, no significant bias was found between the Noack volatility determined by this test method and those determined using Test Method D5800.
12. Keywords
12.1 evaporation loss of lubricants; Noack evaporative loss by TGA; Noack volatility by TGA; TGA Noack volatility; TGA volatility; thermogravimetry; volatility of lubricants