GOST R 51105-97 PDF

Full title and description

GOST R 51105-97 — Gasolines for combustion engines. Unleaded gasoline. Specifications. The standard establishes technical requirements, classification by octane number and basic quality parameters for unleaded motor gasoline intended for automotive and motorcycle engines (class 2 fuels).

Abstract

This national (GOST R) standard sets definitions, classification, technical specifications, test and acceptance rules for non‑ethylated (unleaded) automotive petrol. It covers marking by octane rating (examples: Normal‑80, Regular‑92, Premium‑95, Super‑98), physicochemical limits (density, volatility, sulfur and contaminant limits), and references normative test methods and safety requirements applicable during production and supply.

General information

• Status: Replaced (superseded) — marked as "ЗАМЕНЕН" and replaced by GOST R 51105-2020.
• Publication date: Introduced into force 01 January 1999 (date of effect).
• Publisher: National Standard of the Russian Federation (GOST R) / Federal Agency on Technical Regulating and Metrology (Rosstandart) — issued as a national GOST R document.
• ICS / categories: 75.160.20 (Petroleum products and related materials).
• Edition / version: Designation year 1997 (ГОСТ Р 51105-97); text includes integrated amendments published 2000–2011.
• Number of pages: Approximately 23 pages (published electronic/paper editions commonly listed as 23).

Scope

Applies to non‑ethylated (unleaded) motor gasolines for automotive equipment of class 2 used as fuel in automobile and motorcycle engines and in other engines designed to run on ethylated or non‑ethylated gasoline. The standard defines applicable brands by octane number and associated quality limits for production, testing and supply.

Key topics and requirements

• Classification of unleaded gasoline grades by octane number (examples: Normal‑80, Regular‑92, Premium‑95, Super‑98).
• Technical requirements for physicochemical properties: octane rating (RON), density (standardized at 15 °C), vapour pressure/volatility, sulfur content, presence of mechanical impurities, and other acceptance parameters.
• Sampling, test methods and reference to national and international test standards used to verify compliance.
• Marking, packaging and rules for delivery to consumers, including acceptance criteria and allowable deviations.
• Integrated amendments and corrigenda incorporated into the text (several amendments issued between 1999 and 2011).

Typical use and users

Used by petroleum refiners, fuel producers, fuel quality laboratories, distributors, petrochemical engineers, regulators, testing laboratories and standards specialists to define and verify the quality of unleaded automotive gasoline produced or traded within jurisdictions that reference Russian GOST R norms. It is also used by procurement and compliance teams at fuel retail companies and by vehicle fleet managers requiring specification conformity.

Related standards

References and normative links commonly associated with this standard include other GOST and GOST R standards on fuel test methods and safety, for example: GOST 511‑82, GOST 1510‑84, GOST 2517‑85, GOST R 51866‑2002 (motor gasoline test methods and specifications), and later consolidated/replacing document GOST R 51105-2020. The standard text itself lists a broad set of normative references used for sampling and testing.

Keywords

GOST R 51105-97, unleaded gasoline, motor gasoline, fuel specification, octane rating, RON, petroleum products, fuel quality, GOST R, Russia.

FAQ

Q: What is this standard?

A: GOST R 51105-97 is a Russian national standard titled "Gasolines for combustion engines. Unleaded gasoline. Specifications" that sets technical requirements and classification for non‑ethylated automotive gasoline.

Q: What does it cover?

A: It covers classification by octane number, required physicochemical properties (density, volatility, sulfur, impurities), sampling and testing rules, marking and acceptance criteria for unleaded motor gasolines used in automobiles and motorcycles.

Q: Who typically uses it?

A: Refiners, fuel producers, quality/control laboratories, distributors, regulators, testing labs, procurement and fleet managers operating under or referencing Russian GOST R fuel regulations.

Q: Is it current or superseded?

A: It has been officially marked as replaced (ЗАМЕНЕН) and is superseded by a later standard (GOST R 51105-2020). Users should consult the replacement standard for current requirements.

Q: Is it part of a series?

A: It sits within the broader set of petroleum‑product and fuel standards (ICS 75.160.20) and is cross‑referenced with numerous GOST/GOST R documents that cover test methods, safety and related fuel parameters; it has also received several amendments integrated into later editions.

Q: What are the key keywords?

A: Unleaded gasoline, motor gasoline, octane, RON, fuel specification, GOST R, petroleum products, fuel testing.