GOST 27577-2000 PDF

Full title and description

GOST 27577-2000 — "Газ природный топливный компримированный для двигателей внутреннего сгорания. Технические условия" (Compressed natural fuel gas for internal-combustion engines — Specifications). The standard defines quality, physical‑chemical and safety requirements for compressed natural gas (CNG) used as motor fuel for internal combustion engines (road, rail, river and agricultural transport) and for filling/handling at gas‑filling compressor stations.

Abstract

GOST 27577-2000 specifies required properties (heat of combustion, relative density, calculated octane number, allowable contents of H2S and mercaptan sulfur, mechanical impurities, non‑combustible components, oxygen, water vapor, and filling temperature/pressure limits) and safety/acceptance rules for compressed natural fuel gas intended as an alternative motor fuel. It was developed by the technical committee for natural gas (TC 52 / VNIIGAZ) and adopted as an interstate standard.

General information

• Status: Replaced / superseded (document later updated and a 2022 edition was introduced; earlier listings also show withdrawn/changed status in national catalogs).
• Publication date: Entered into force 2002-01-01 (adopted 2000).
• Publisher: Published as a interstate (Межгосударственный) standard; original publication issued through the standards publishing house (ИПК Издательство стандартов) and adopted via the Interstate Council for Standardization, Metrology and Certification.
• ICS / categories: ICS 75.060 (Gas industry; gas fuels / fuel gases).
• Edition / version: Designation: GOST 27577-2000 (text published with amendments noted in IUS). Replaced by GOST 27577-2022 (successor standard).
• Number of pages: Common bibliographic records list 9 (short document) — some catalogs list 6–9 pages depending on formatting; original official release is a short technical specification.

Scope

The standard applies to compressed natural (fuel) gas produced from pipeline or city gas and prepared by compression and removal of impurities without altering the native component composition; it establishes acceptance rules, quantitative limits for contaminants and non‑combustible components, filling temperature and pressure constraints, safety classifications (toxicity and flammability limits), and quality documentation requirements for batches of CNG supplied for vehicle and stationary internal combustion engines.

Key topics and requirements

• Definition of fuel grade: lower heating value (minimum ~31,800 kJ/m³ at 20 °C), and relative density ranges for CNG intended for engine use.
• Limits on contaminants: maximum concentrations for hydrogen sulfide, mercaptan sulfur, mechanical impurities and water vapour; maximum share of non‑combustible components and oxygen.
• Calculated octane number (motor method) requirement to ensure engine performance and knock resistance.
• Filling and acceptance requirements: batch acceptance, required quality documentation (per relevant ГОСТ/ГОСТ Р rules), and permitted filling temperature/pressure conditions.
• Safety and hazard classification: toxicological class (4th class) and flammability/explosion limits (e.g., methane-based lower/upper flammability limits ~5–15% by volume).

Typical use and users

Typical users are gas suppliers, gas‑filling compressor station (AGHKS/AGNKS) operators, vehicle fuel system designers, engine manufacturers tuning engines for CNG, testing and metrology laboratories, regulatory authorities and certification bodies in countries using CIS/MG standards, and organizations that operate or maintain fleets converted to CNG. The standard is used for fuel specification, acceptance testing, safety documentation and procurement contracts.

Related standards

Predecessor: GOST 27577-87 (earlier edition). Successor/replacement: GOST 27577-2022 (new edition bringing updated requirements and numbering). Related norms address CNG filling/containers and vehicle cylinders (for example standards on gas cylinders and on gas‑filling equipment such as GOST R / related technical specifications that reference GOST 27577 requirements).

Keywords

GOST 27577-2000, compressed natural gas, CNG, fuel gas, internal combustion engine fuel, gas quality, filling stations, gas composition, contaminant limits, octane number, safety limits, ГОСТ

FAQ

Q: What is this standard?

A: GOST 27577-2000 is an interstate standard that defines specifications and technical conditions for compressed natural (fuel) gas used as a motor fuel for internal combustion engines (vehicles, rail, river and agricultural machinery).

Q: What does it cover?

A: It covers required physical‑chemical properties (heating value, density, octane number), maximum allowed impurities (H2S, mercaptan sulfur, mechanical particles, water vapour), limits for non‑combustible components and oxygen, filling/acceptance procedures, and safety/handling requirements for CNG.

Q: Who typically uses it?

A: Gas producers and distributors, compressor station operators, vehicle and engine manufacturers, certification and testing laboratories, and regulatory bodies dealing with fuel quality and vehicle fuel systems.

Q: Is it current or superseded?

A: GOST 27577-2000 has been superseded by a later edition — GOST 27577-2022 — and national catalogs list the 2000 text as replaced; users should consult the 2022 edition (or the latest national implementation rules) for current requirements.

Q: Is it part of a series?

A: Yes — it continues the GOST series on fuel gases (it replaced the 1987 edition and is followed by the 2022 edition). Related standards address gas cylinders, filling equipment and measurement/testing methods referenced by GOST 27577’s normative clauses.

Q: What are the key keywords?

A: Compressed natural gas (CNG), fuel gas, engine fuel, gas quality, contaminant limits, octane number, gas‑filling station, safety, ГОСТ 27577.