ASTM D2386-19 rus PDF

Full title and description

St ASTM D2386-19 rus — Standard Test Method for Freezing Point of Aviation Fuels. This is the 2019 edition of ASTM D2386 (designation D2386-19) describing the manual test procedure for determination of the freezing/crystallization point of aviation turbine fuels and aviation gasoline. A Russian-language rendering/translation of the standard (rus) is offered by a number of national resellers and translation services.

Abstract

ASTM D2386-19 defines a manual, visual procedure and required apparatus for cooling aviation fuels under controlled conditions and observing the temperature at which solid hydrocarbon crystals form (the freezing or crystallization point). The method is intended for laboratory determination of the lowest temperature at which the sample remains free of particles that could restrict fuel flow in aircraft fuel systems; where no discrete crystallization point is observed the procedure allows reporting the lowest measurable temperature reached before crystal formation. D2386-19 was published in 2019 and provides test practice, apparatus details, sampling and reporting requirements suited to fuel production, quality control and regulatory applications.

General information

• Status: Superseded / historical edition (D2386-19). A later revision of D2386 was published in 2025 and is the active ASTM document as of late 2025.
• Publication date: January 5, 2019 (edition D2386-19).
• Publisher: ASTM International (formerly American Society for Testing and Materials).
• ICS / categories: 75.160.20 — Liquid fuels; Petroleum products, liquid fuels and lubricants.
• Edition / version: D2386-19 (2019 edition).
• Number of pages: 5 pages (2019 PDF edition).

Scope

The standard covers determination of the temperature below which solid hydrocarbon crystals may form in aviation turbine fuels and aviation gasoline. It applies to laboratory measurement of freezing/crystallization point and provides procedures for controlled cooling, observation and temperature recording. The method can be used to report the lowest measurable temperature attained if a discrete crystallization temperature is not observed. The procedure is intended for use where freezing point information is required for fuel specifications, blending operations, product acceptance and quality control.

Key topics and requirements

• Definition of freezing/crystallization point for aviation fuels and its significance to aircraft fuel-system operability.
• Required apparatus and glassware (jacketed sample tubes, cooling bath/jacket, thermometers or temperature sensors) and preparation of apparatus.
• Sample preparation, handling and minimum sample volume requirements to avoid contamination or temperature disturbance.
• Controlled cooling procedure, specified cooling rates, observation technique (visual detection of crystals) and measurement resolution.
• Reporting requirements: freezing point temperature, units (SI °C), test conditions and any deviations or non-detectable crystallization (report lowest measurable temperature).
• Precision and reproducibility statements (interlaboratory study-derived limits applicable within specified temperature ranges) and notes on sources of error.
• Health, safety and environmental considerations for handling flammable hydrocarbon fuels and low-temperature equipment.

Typical use and users

Used by petroleum testing laboratories, refinery quality-control teams, fuel suppliers and blending operations, airline and aircraft maintenance fuel labs, regulatory and inspection organizations, and instrument/equipment manufacturers. Typical applications include acceptance testing of jet fuels and aviation gasoline, product specification compliance checks, blending verification and research into low-temperature fuel behavior.

Related standards

Standards commonly associated with or complementary to D2386 include ASTM D5972 (automatic phase-transition freezing point method), ASTM D5901 (automated optical method — historical/alternative), and fuel specification documents such as ASTM D1655 (Specification for Aviation Turbine Fuels), ASTM D910 (aviation gasoline specifications) and ASTM D7566 (specification for synthetic aviation turbine fuel components). Practice D6300 (interlaboratory study and precision statements) and other D02 committee methods on cold-flow properties are also relevant.

Keywords

freezing point; crystallization point; aviation fuel; jet fuel; avgas; D2386; low-temperature test; cold-flow properties; fuel specification; manual visual method; sample tube; precision.

FAQ

Q: What is this standard?

A: ASTM D2386-19 is the 2019 edition of the ASTM test method that specifies a manual procedure for determining the freezing (crystallization) point of aviation turbine fuels and aviation gasoline. The entry “rus” indicates a Russian-language rendering or translation of that edition.

Q: What does it cover?

A: It covers apparatus, sample preparation, controlled cooling and visual observation procedures used to determine the temperature at which solid hydrocarbon crystals form in aviation fuels, together with reporting and precision guidance.

Q: Who typically uses it?

A: Fuel testing laboratories, refineries, fuel suppliers, airlines, aircraft maintenance organizations, regulators and researchers concerned with fuel low-temperature behavior and specification compliance.

Q: Is it current or superseded?

A: The D2386-19 edition was published January 5, 2019. It has since been superseded by a later revision of D2386 published in 2025; D2386-19 should be considered a historical edition and users are normally advised to apply the latest active revision unless a contract or specification explicitly requires the 2019 edition. (Publication and revision dates cited above are concrete: D2386-19 — Jan 5, 2019; successor revision published in 2025.)

Q: Is it part of a series?

A: Yes. D2386 is part of ASTM Committee D02 (Petroleum Products, Liquid Fuels and Lubricants) cold- and low-temperature test methods. Related freezing-point/cold-flow methods (automated or alternative procedures) include D5972 and D5901, and freezing point requirements appear in fuel specification standards such as D1655, D910 and D7566.

Q: What are the key keywords?

A: Freezing point, crystallization point, aviation fuel, jet fuel, avgas, low-temperature testing, D2386, sample tube, cooling bath, manual visual method.