O’z DSt 989:2010 PDF

Full title and description

O’z DSt 989:2010 — Diesel fuel. Technical specifications. (Russian: Топливо дизельное. Технические условия). This national standard establishes requirements, grades and test methods for diesel fuels used in compression‑ignition (diesel) engines and for related production, sampling and labelling practices.

Abstract

O’z DSt 989:2010 sets out the technical conditions for diesel fuels supplied and used in the Republic of Uzbekistan. It replaces the earlier O’z DSt 989:2001 and covers physical and chemical properties, seasonal/grade classification (summer, winter, interseasonal types), permissible limits (for example sulphur content and other impurities), test methods and requirements for marking and documentation. The standard is intended to ensure fuel quality suitable for internal‑combustion diesel engines and for safe handling and distribution.

General information

• Status: Active / in force (current national standard as of published editions available in normative catalogs and document suppliers).
• Publication date: 2010 (registered in national registries early 2011).
• Publisher: National standards body of the Republic of Uzbekistan (O’z DSt national standards series — published under the national standardization system administered by the relevant Uzbek state standardization agency).
• ICS / categories: 75.160.20 (Liquid fuels / Petroleum and related technologies).
• Edition / version: O’z DSt 989:2010 (replaces O’z DSt 989:2001).
• Number of pages: 21 (typical pagination for the published electronic version).

Scope

The standard applies to petroleum‑derived diesel fuels intended for traction and stationary diesel engines and covers the classification of fuel by seasonal and operational grades (e.g., summer, winter, interseasonal), required physico‑chemical parameters, acceptable limits for impurities (including sulphur), methods of sampling and testing, packaging/marking and documentation. It is applicable to producers (refineries), fuel distributors and organisations using diesel fuel within Uzbekistan unless otherwise specified by contract or regulation.

Key topics and requirements

• Definition of grades and seasonal classifications (summer, winter, interseasonal) and their intended use.
• Physical properties: density (at reference temperature), kinematic viscosity, flash point.
• Chemical properties: cetane (ignition) quality requirements or methods to evaluate ignition quality; limits on sulphur content and other contaminants.
• Cold‑flow properties and low‑temperature operability (e.g., cold filter plugging behaviour / pour point or equivalent cold tests) for winter or arctic grades.
• Distillation characteristics, water and sediment content, ash and corrosivity limits.
• Requirements for additives, labelling/marking, sampling procedures and reference test methods.

Typical use and users

Primary users are refineries and fuel producers, fuel distribution companies, quality control and testing laboratories, transport and fleet operators (road, rail, industrial engines), equipment and engine manufacturers that specify fuel quality, as well as government regulators and procurement bodies responsible for fuel quality compliance. The standard is used to specify contract requirements, perform acceptance testing and to ensure seasonal suitability of supplied diesel.

Related standards

Commonly referenced international and regional norms for diesel fuels include EN 590 (Automotive fuels — Diesel — Requirements and test methods), ISO standards on petroleum fuels (classification and test methods, e.g., ISO fuel classification family) and national GOST/ASTM documents covering specific test methods and fuel classes. O’z DSt 989:2010 replaces the earlier O’z DSt 989:2001 within the national series.

Keywords

diesel fuel; automotive fuels; liquid fuels; fuel specification; cetane number; sulphur content; viscosity; flash point; cold‑flow properties; sampling and testing; seasonal grades.

FAQ

Q: What is this standard?

A: O’z DSt 989:2010 is the Republic of Uzbekistan’s national standard that specifies technical requirements and test methods for diesel (compression‑ignition) fuels.

Q: What does it cover?

A: It covers fuel grades (seasonal classifications), required physical and chemical properties (density, viscosity, flash point, cetane/ignition quality, sulphur and impurity limits), distillation and cold‑flow behaviour, sampling and test methods, marking and documentation for supplied diesel.

Q: Who typically uses it?

A: Refineries, fuel suppliers and distributors, testing laboratories, vehicle/fleet operators, engine manufacturers and government/regulatory bodies working with diesel fuel quality and contractual specifications.

Q: Is it current or superseded?

A: The 2010 edition (O’z DSt 989:2010) is published as the national edition that replaces O’z DSt 989:2001. Commercial normative catalogs list the 2010 edition as active/current in their inventories. For the absolute current legal status in Uzbekistan consult the national registry or the responsible state standardization agency.

Q: Is it part of a series?

A: Yes — it belongs to the O’z DSt series of national standards of the Republic of Uzbekistan covering petroleum and related technologies (the O’z DSt series includes many national adaptations/identifications of international and regional standards).

Q: What are the key keywords?

A: Diesel fuel; liquid fuels; fuel specification; cetane; sulphur; viscosity; flash point; cold filter plugging point; sampling; testing.