GOST 6370-2018 PDF

Full title and description

GOST 6370-2018 — "Petroleum, petroleum products and additives. Method for determination of mechanical admixtures" (ГОСТ 6370-2018. Нефть, нефтепродукты и присадки. Метод определения механических примесей). The standard defines a laboratory method for detecting and quantifying mechanical (solid) impurities in crude oil, refined petroleum products and additives; it expressly excludes application to greases (plastic lubricants) and bitumens.

Abstract

This standard specifies the principle of the method, required apparatus and materials, sampling and sample preparation, test procedure, calculation and presentation of results, and precision (repeatability/reproducibility) data for the determination of mechanical impurities in petroleum matrices. It is intended to ensure comparable, repeatable laboratory determinations used for quality control, acceptance testing and regulatory compliance. The standard replaces GOST 6370-83.

General information

• Status: Active / In force (interstate GOST adopted as national standard of the Russian Federation).
• Publication date: Approved 27 September 2018 (Order No. 666-st); planned implementation dates were later adjusted — currently shown as in force from 01 December 2023 in official listings.
• Publisher: Federal Agency on Technical Regulation and Metrology (Rosstandart) as the adopting authority for the interstate standard.
• ICS / categories: 75.080 — Petroleum products in general; oil and related technologies.
• Edition / version: 2018 (GOST 6370-2018). Amendments and corrigenda have been published subsequently in official information bulletins.
• Number of pages: Source listings vary (commonly 12–14 pages in electronic/printed presentations); many catalogues list 14 pages.

Scope

GOST 6370-2018 establishes a laboratory analytical procedure for determination of mechanical (solid) impurities in crude oil, petroleum products and additives. It gives requirements for sampling and sample preparation, the apparatus and reagents to be used, step-by-step test procedure, calculation of the mass fraction of mechanical impurities, and precision data. The standard explicitly excludes greases (plastic lubricants) and bitumens from its field of application. The method is intended for routine quality-control and compliance testing in laboratories and industrial test facilities.

Key topics and requirements

• Definition and classification of mechanical impurities in oil and oil products (nature and typical particle types).
• Requirements for sampling and sample representativeness (reference to GOST sampling standards).
• Specified laboratory apparatus and consumables (filter papers, funnels, drying equipment, analytical balances) and their calibration/verification requirements.
• Reagents and solvents recommended for washing, dispersion or clarification steps (e.g., toluene, alcohols) and handling precautions.
• Detailed stepwise test procedure including filtration/settling, washing, drying and weighing to determine mass fraction of solids.
• Calculation rules: expressing results as mass fraction (e.g., mg/kg or %), blank corrections and rounding conventions.
• Precision information: repeatability and reproducibility limits for the method under specified conditions.
• Exclusions and limitations (not applicable to greases and bitumens) and normative references to related standards.

Typical use and users

Used by chemical and physical testing laboratories, refinery and terminal quality-control units, additive manufacturers, regulatory bodies, procurement/acceptance testing teams, and research institutions involved in petroleum product characterization. Typical applications include incoming/raw material inspection, final product quality checks, specification compliance, and troubleshooting (identifying contamination sources).

Related standards

GOST 6370-2018 references and is commonly used alongside other petroleum testing and laboratory standards, for example: GOST 2517-2012 (sampling of petroleum and products), GOST 12026-76 (laboratory filter paper), GOST 1277-75 (reagent silver nitrate), GOST 33-2016 (viscosity determinations), GOST 24104 (laboratory scales) and related laboratory apparatus and reagent specifications. It replaces GOST 6370-83.

Keywords

mechanical impurities; solid contaminants; petroleum; petroleum products; additives; test method; filtration; laboratory procedure; GOST 6370-2018.

FAQ

Q: What is this standard?

A: An interstate (GOST) standard that specifies a laboratory method for determining mechanical (solid) impurities in crude oil, petroleum products and additives (GOST 6370-2018).

Q: What does it cover?

A: The standard covers sampling considerations, required apparatus and reagents, the stepwise analytical procedure (filtration/washing/drying/weighing), calculation and reporting of results, and precision (repeatability/reproducibility) characteristics. It does not apply to greases (plastic lubricants) and bitumens.

Q: Who typically uses it?

A: Quality control and analytical laboratories in refineries, petrochemical plants and terminals, additive producers, independent testing houses, procurement and regulatory agencies that monitor product quality and supplier compliance.

Q: Is it current or superseded?

A: GOST 6370-2018 is the current version that replaced GOST 6370-83. Official listings show it as in force; the approved date is 27 September 2018 and the standard has been listed as coming into force (national adoption dates) per Rosstandart administrative orders, most recently shown in catalogues as effective from 01 December 2023. Check your national catalogue or Rosstandart notices for the most current adoption/amendment status in your jurisdiction.

Q: Is it part of a series?

A: It is part of the suite of interstate/national petroleum testing standards (GOST series) covering sampling, physical and chemical test methods for petroleum and petroleum products; it cross-references other GOSTs for sampling, reagents and laboratory equipment.

Q: What are the key keywords?

A: mechanical impurities; solids in oil; petroleum testing; additives; filtration; laboratory method; GOST 6370-2018.