Standard Test Method for Evaporation Loss of Lubricating Oils by the Noack Method

Importancia y uso:

5.1 The evaporation loss is of particular importance in engine lubrication. Where high temperatures occur, portions of an oil can evaporate.

5.2 Evaporation may contribute to oil consumption in an engine and can lead to a change in the properties of an oil.

5.3 Many engine manufacturers specify a maximum allowable evaporation loss.

5.4 Some engine manufacturers, when specifying a maximum allowable evaporation loss, quote this test method along with the specifications.

5.5 The apparatuses used in Procedure C (see Annex A2) and Procedure D, also permit collection of the volatile oil vapors for determination of their physical and chemical properties. Elemental analysis of the collected volatiles may be helpful in identifying components such as phosphorous, which has been linked to premature degradation of the emission system catalyst.

Subcomité:

D02.06

Referida por:

D6375-09R19, D6417-15R19, D6074-15R22, D6375-09R19, D4485-22E01, D6417-15R19, D7578-20

Volúmen:

05.02

Número ICS:

75.100 (Lubricants, industrial oils and related products)

Palabras clave:

evaporation loss of lubricants; Noack volatility; volatility of lubricants;