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MH/T 6137.2-2025Testing method for performance ofaviation turbine engine lubricating oils - Part 2: Vapor phase coking propensity (English PDF)

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Issued by

Civil Aviation Administration of China

Level / Type

National · Recommended

Issue date

July 18, 2025

Implementation date

August 1, 2025

Scope

MH/T 6137.2-2025 (Testing method for performance ofaviation turbine engine lubricating oils - Part 2: Vapor phase coking propensity) is available as an English-translated PDF.

MH/T 6137.2-2025 — This standard specifies the test method for the coking tendency of oil mist/air two-phase mixtures of aviation turbine engine lubricating oil (hereinafter referred to as "turbo lubricating oil") in the vent pipe, including instruments and equipment, reagents and consumables, test preparation, test procedures, data processing, and reporting.

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Document preview — MH/T 6137.2-2025

National Standard of the People's Republic of China

ICS: 75.100
Classification: E 34

Issued by: Civil Aviation Administration of China

What this standard covers1
Document data2

What this standard covers

This standard specifies the test method for the coking tendency of oil mist/air two-phase mixtures of aviation turbine engine lubricating oil (hereinafter referred to as "turbo lubricating oil") in the vent pipe, including instruments and equipment, reagents and consumables, test preparation, test procedures, data processing, and reporting. This document applies to the testing of the gas-phase coking performance of turbine lubricating oil.

Document data

International classification (ICS): 75.100.

Chinese classification (CCS): E34.

Estimated length of the Chinese original: 1,310 words.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 1 pages — is available in the English PDF.

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