GOST 18136-2017 PDF

Full title and description

GOST 18136-2017 — "Masla. Metod opredeleniya stabil'nosti protiv okisleniya" (Oils. Method for determination of oxidation stability). This interstate (GOST) standard specifies a laboratory method and apparatus arrangements for assessing the tendency of mineral and synthetic oils (motor, transformer, turbine and other petroleum oils), both with and without additives, to oxidise under defined conditions.

Abstract

The standard defines test procedures, required apparatus and test conditions to determine changes in oil properties caused by oxidative ageing. Measured parameters include viscosity, acid number, saponification number, colour and mass of catalyst, condensate appearance and mass, dielectric loss tangent, specific electrical resistivity and insoluble deposits. Test conditions and oxidising media (air or oxygen), catalysts and exposure times/temperatures are given for different oil types.

General information

• Status: Active (in force as a national/interstate GOST standard).
• Publication date: Approved 19 September 2017; introduced into effect 1 July 2019.
• Publisher: Adopted/registered by the Federal Agency on Technical Regulation and Metrology (Rosstandart) as an interstate GOST standard.
• ICS / categories: ICS 75.100 (Lubricants, industrial oils and related products).
• Edition / version: 2017 (GOST 18136-2017), replaces GOST 18136-72.
• Number of pages: Approximately 12 pages (electronic PDF/DOC formats available from standards libraries).

Key registration and implementation information (approval order and date of introduction) are recorded in Rosstandart materials and normative libraries.

Scope

GOST 18136-2017 applies to mineral and synthetic oils intended for engines, transformers, turbines and other equipment; it provides a comparative laboratory method to evaluate the oil’s resistance to oxidation (ageing) under specified aggressive conditions. The method is intended for conditional assessment of oils’ tendency to age in service and for selection of test conditions according to oil type and intended application (appendix provides recommended temperatures, oxidisers, catalysts and durations for common oil classes).

Key topics and requirements

• Definition of test apparatus (universal oxidation apparatus or TSM-type apparatus) and required components (heating block, test vessels, condensate trap, catalyst holders, gas supply lines, thermometers, etc.).
• Prescribed test conditions by oil type: temperature, oxidiser (air or oxygen), oxidiser flow rate, exposure time and choice of catalyst (copper, iron or soluble metal naphthenates).
• Measured parameters before and after oxidation: kinematic viscosity, acid number, saponification (or saponification-related) number, colour, catalyst mass change, condensate mass and appearance, dielectric loss tangent, specific electrical resistivity and content of insoluble deposits (sludge).
• Instructions for sample handling, conditioning, selection of test conditions (normative and informative annexes), and reporting of results.
• Reference normative documents and test methods used to determine the individual measured parameters (listed GOSTs for viscosity, titration, sampling and reagent specifications).

Typical use and users

Used by oil and lubricant manufacturers, independent test laboratories, utilities (transformer oil testing), turbine and engine manufacturers, quality control departments, research institutes and certification bodies to assess oxidative stability, compare formulations, validate additive performance and support shelf-life / in-service ageing evaluations.

Related standards

References and related documents cited in GOST 18136-2017 include earlier national GOSTs for sampling, viscosity determination and reagent specifications (for example GOST 33 for viscosity, GOST 11362 for neutralisation/acid number, GOST 17362 for saponification-related methods, and other laboratory reagent/equipment standards). The standard replaces the earlier GOST 18136-72. It sits within ICS 75.100 group alongside other lubricant and oil test standards.

Keywords

Oils; lubricants; oxidation stability; oxidative ageing; oil testing; oxidation apparatus; acid number; viscosity; dielectric loss; insoluble deposits; GOST 18136-2017.

FAQ

Q: What is this standard?

A: GOST 18136-2017 is an interstate (GOST) standard specifying a laboratory method for determining the oxidation stability (resistance to oxidative ageing) of mineral and synthetic oils.

Q: What does it cover?

A: It covers required apparatus, recommended test conditions for different oil classes (temperature, oxidiser, catalyst and time), and the list of oil properties to measure before and after oxidation to characterise stability (viscosity, acid number, saponification/saponification-related figures, colour, condensate, dielectric parameters, insolubles, etc.).

Q: Who typically uses it?

A: Oil producers, independent laboratories, equipment manufacturers (engines, turbines, transformers), quality/assurance teams, certification bodies and research organisations involved in lubricant formulation, qualification and ageing studies.

Q: Is it current or superseded?

A: As of its registration and introduction into effect, GOST 18136-2017 is the current standard replacing GOST 18136-72; its registered approval is dated 19 September 2017 with entry into force on 1 July 2019. Users should check national/regional catalogues for any later revisions or amendments before relying on the method for regulatory purposes.

Q: Is it part of a series?

A: It is part of the petroleum and lubricants standards set (ICS 75.100) and references a number of other GOSTs that define individual test methods and laboratory equipment/reagent requirements; it replaces the earlier 1972 version of the same standard.

Q: What are the key keywords?

A: Oils; oxidation stability; lubricants; oxidative ageing; test apparatus; viscosity; acid number; dielectric properties; insoluble deposits; GOST.