GOST 4333-2014 PDF

Full title and description

GOST 4333-2014 — "Petroleum products. Methods for determination of flash and fire points in open cup" (Russian: ГОСТ 4333-2014. Нефтепродукты. Методы определения температур вспышки и воспламенения в открытом тигле). The standard specifies laboratory methods (Cleveland open-cup and related open-cup procedures) to determine the flash point and fire (ignition) point of petroleum products in an open crucible (open cup).

Abstract

Defines procedures, equipment, sampling and reporting requirements for measuring flash and fire (ignition) temperatures of petroleum products using open-cup techniques (principally the Cleveland method and associated open-cup variants). It is aligned with ISO 2592:2000 and was intended for products with open-cup flash points above about 79 °C, while liquid fuels normally tested in closed-cup apparatus are excluded.

General information

• Status: Superseded / replaced (was in force but later replaced by GOST 4333-2021).
• Publication date: Issue year 2014 (adopted/entered into force 01 July 2016; registration/approval activity in 2015–2016).
• Publisher: Interstate/ Russian standardization authorities — Federal Agency for Technical Regulation and Metrology (Rosstandart) / interstate standards body.
• ICS / categories: 75.080 (Petroleum and related technologies / Petroleum products).
• Edition / version: 2014 edition (GOST 4333-2014).
• Number of pages: Approximately 20–21 pages (most catalogs list 20 pages).

Scope

Specifies laboratory methods for determining flash point and ignition (fire) point of petroleum products in an open cup (open crucible) apparatus. The standard sets out required reagents, apparatus (open cup apparatus such as Cleveland type), sample preparation, test procedure, interpretation and reporting of results. It applies to petroleum products whose open-cup flash point is above the indicated threshold (typically >79 °C) and excludes liquids routinely tested by closed-cup methods. The document reproduces or is consistent with ISO 2592:2000 where applicable.

Key topics and requirements

• Definition of flash point and fire (ignition) point for open-cup testing.
• Detailed description of the Cleveland open-cup apparatus and other accepted open-cup variants.
• Requirements for reagents, calibration, thermometer and burner types, and apparatus preparation.
• Step-by-step test procedure: sample placement, heating rate, application of test flame/pilot, and criteria for determining flash and fire points.
• Sampling, sample handling, and pre-test conditioning to ensure representative and safe measurement.
• Reporting format, required data, and limits on precision and repeatability (as stated in the standard and ISO alignment).
• Normative references to earlier GOSTs and related test standards (listed in normative references).

Typical use and users

Used by petroleum testing laboratories, refinery QC laboratories, fuel and lubricant producers, import/export inspection bodies, conformity assessment bodies, and regulatory authorities that verify safety and classification of liquid fuels and petroleum products. It is commonly used where open-cup flash/fire point determinations are required for product specification, storage and transport safety assessments.

Related standards

Replaces: GOST 4333-87. Superseded by: GOST 4333-2021. Closely related / referenced: ISO 2592:2000 (methodal alignment), and various GOST normative references (for example GOST 450-77, GOST 2517-2012, GOST 4166-76 and others cited in the normative references). For closed-cup testing of fuels, see GOST 6356 and related closed-cup test methods.

Keywords

Petroleum products; flash point; fire point; open cup; Cleveland open cup; Brinckman; ISO 2592:2000; GOST 4333-87; GOST 4333-2021; petroleum testing; fuel safety.

FAQ

Q: What is this standard?

A: GOST 4333-2014 is a national/interstate standard specifying laboratory methods to determine the flash and fire (ignition) points of petroleum products using open-cup apparatus (notably the Cleveland method).

Q: What does it cover?

A: It covers apparatus, reagents, sample preparation, test procedures, result interpretation and reporting for open-cup flash and fire point determinations; it aligns with ISO 2592:2000 and excludes fuels normally tested using closed-cup methods.

Q: Who typically uses it?

A: Petroleum and lubricant manufacturers, QC and research laboratories, conformity assessment bodies, transport and storage safety personnel, and regulatory inspectors performing flash/fire point testing for specification, safety classification, and compliance.

Q: Is it current or superseded?

A: GOST 4333-2014 has been superseded — it replaced GOST 4333-87 when introduced, and later was replaced by GOST 4333-2021; catalogs report its term of action ended and that the 2021 edition is the acting document. Check the national/regional standards catalog for the current active text and dates.

Q: Is it part of a series?

A: It is part of the family of petroleum product test-method standards (GOST/ISO-aligned documents) governing fuel and lubricant testing; it directly succeeds earlier national GOST versions and sits alongside related test standards (e.g., closed-cup flash point standards).

Q: What are the key keywords?

A: Flash point, fire point (ignition point), open cup, Cleveland method, Brinckman, petroleum products, ISO 2592.