GOST 6370-83 PDF

Full title and description

GOST 6370-83 — "Petroleum, petroleum products and additives. Method for determination of mechanical admixtures." Specifies a gravimetric filtration-based procedure (with solvent dissolution for slow‑filtering materials), washing, drying and weighing of filter residue to determine the mass fraction of mechanical impurities in oil, liquid petroleum products and additives; excludes greases and bitumens.

Abstract

This standard defines a laboratory method to quantify mechanical (solid) admixtures in crude oil, liquid petroleum products and liquid additives by filtering a measured sample, treating slowly filtering samples with a solvent (for example gasoline or toluene), washing the collected residue, drying it to constant mass and determining the gravimetric result. The method was issued as GOST 6370-83 (approved 1983, published/effective 1984) and has been subject to amendments and later replacement by a 2018 edition.

General information

• Status: Replaced / superseded (withdrawn from effect; listed as replaced by GOST 6370-2018).
• Publication date: Approved 1983 (USSR State Committee for Standards); published/effective 1 January 1984 (edition designation -83).
• Publisher: USSR State Committee for Standards (original); later managed by Rosstandart in successor notices.
• ICS / categories: Petroleum and related products (classified under oil/petroleum technical area — national classifier grouping 75 / petroleum product standards).
• Edition / version: GOST 6370-83 (with Amendment No.1 integrated, 1989); later superseded by GOST 6370-2018.
• Number of pages: Typically listed as 7–8 pages depending on publisher/format and language edition.

Scope

Applies to crude oil, liquid petroleum products and liquid additives and prescribes the laboratory gravimetric procedure for determination of mechanical (solid) impurities present in such products. The standard explicitly excludes application to plastic (grease) lubricants and bituminous materials. It is intended for quality control, specification verification and laboratory assessment of solid contaminant content in liquid petroleum matrices.

Key topics and requirements

• Definition of mechanical admixtures and sample applicability (oil, liquid petroleum products, additives).
• Sample preparation: measured sample mass/volume and any pre‑treatment needed for accurate filtration.
• Solvent treatment for slow‑filtering samples (examples: gasoline, toluene) to aid filtration and recovery.
• Filtration and washing of precipitate on an appropriate filter medium, followed by drying to constant mass.
• Gravimetric calculation of mass fraction of mechanical impurities (residue mass relative to sample).
• Reporting, repeatability considerations and references to related test methods and normative documents.

Typical use and users

Used by petroleum refineries, product quality control laboratories, additive manufacturers, independent testing laboratories and regulatory or standards bodies to assess and document solid contamination levels in liquid petroleum streams and products. It supports acceptance testing, batch release testing and forensic investigation of contamination issues.

Related standards

Referenced and related normative documents include earlier and later GOSTs on petroleum testing and sample handling (for example the earlier ГОСТ 6370-59, and the replacing edition GOST 6370-2018), plus various GOSTs on reagents, water/detergent methods and laboratory procedures cited within the text. Users should consult the replacing 2018 edition for the most current procedure and cross‑references.

Keywords

mechanical admixtures; mechanical impurities; petroleum; liquid petroleum products; additives; gravimetric determination; filtration; solvent dissolution; gasoline; toluene; quality control.

FAQ

Q: What is this standard?

A: GOST 6370-83 is a Soviet/Russian standard that specifies a laboratory gravimetric method for determining mechanical (solid) admixtures in crude oil, liquid petroleum products and liquid additives.

Q: What does it cover?

A: It covers sample treatment, filtration (including solvent treatment for slow‑filtering samples), washing of the precipitate, drying and weighing to calculate the mass fraction of solid contamination. It excludes greases and bituminous materials.

Q: Who typically uses it?

A: Petroleum refineries, QC/analytical laboratories, additive producers, testing houses and regulatory laboratories use this method for routine and acceptance testing of liquid petroleum products.

Q: Is it current or superseded?

A: GOST 6370-83 has been superseded — the procedure was replaced by a later edition (GOST 6370-2018). Official notices show the standard’s period of validity was extended several times and its formal end-of-effect date is recorded as 1 December 2023; users should adopt the 2018 edition or the current national test method in force.

Q: Is it part of a series?

A: Yes — it belongs to the body of petroleum and petroleum-products testing standards (GOSTs covering oil, products and additives) and references other GOST test methods and reagent/handling norms. It also follows the numbering/series practice for petroleum standards in the national classifier.

Q: What are the key keywords?

A: Mechanical impurities, filtration, gravimetric determination, petroleum products, additives, solvent treatment, quality control.