ISO 8068:2024

Lubricants, industrial oils and related products (class L) — Family T (Turbines) — Specifications for lubricating oils for turbines

This document specifies the minimum requirements for lubricants for turbines, as delivered. It is intended to be used in conjunction with ISO?6743-5.

This document specifies the requirements for a wide variety of lubricants for the lubrication of most types of turbines for power generation, including steam turbines, gas turbines, single shaft combined cycle turbines with common lubrication system and hydraulic turbines. This document does not specify the requirements for lubricants for wind turbines, which are covered in ISO?12925-1.

The following lubricants are considered:

—???? mineral oils, of either API groups?I, II, II+, III, including group?III from GTL (gas to liquid) process, and?III+. Some API groups?II and III are suitable for high temperature gas turbines;

—???? synthetic lubricants, esters (API group?V) and polyalphaolefins (API group?IV), intended for high temperature gas turbines;

—???? synthetic lubricants, esters (API group?V) and polyalphaolefins (API group?IV), environmentally acceptable for use in hydraulic turbines;

—???? fire resistant phosphate-ester type lubricants.

Edition	2024
Published Date	2024
Published By	International Standardization Organisation
Page Count	19