O’z DSt 1134:2007 PDF

Full title and description

O’z DSt 1134:2007 — Diesel fuel ECO. Technical specifications (Топливо дизельное ЭКО. Технические условия). The standard establishes technical requirements for so‑called "ECO" diesel fuels used in transportation and industrial applications.

Abstract

This national standard (O’z DSt 1134:2007) defines classification, required physical and performance characteristics, and quality control/test provisions for ECO-designated diesel fuels intended for use in automotive, locomotive and other diesel engines. It emphasises low‑temperature operability, cetane performance and other parameters used to ensure reliable engine operation under specified conditions.

General information

• Status: Active / in-force (listed as an active O’z DSt document in commercial and standards catalogues).
• Publication date: 2007.
• Publisher: State standards system of the Republic of Uzbekistan — published under the O’z DSt series (Uzbek Agency for Standardization / Uzstandard).
• ICS / categories: Fuels — Liquid fuels (ICS: 75.160 series — fuels/liquid petroleum products).
• Edition / version: Original O’z DSt 1134:2007 edition.
• Number of pages: 20 pages (electronic/pdf distribution as listed by standards resellers).

Scope

O’z DSt 1134:2007 specifies the technical conditions (requirements and test methods) for ECO-class diesel fuels supplied for engine use. The scope covers classification of ECO fuel grades, limits and minimums for key fuel properties (for example, cetane number, density, low‑temperature characteristics and absence of water and mechanical impurities), and rules for sampling, testing and marking. The standard is aimed at producers, suppliers and testing laboratories to ensure consistent product quality and field performance.

Key topics and requirements

• Classification of ECO diesel fuel grades and their intended climate/season classes.
• Minimum cetane number requirements (examples in related tables show cetane number ≥ 50 for ECO grades).
• Limits on density (example limits published for ECO grades: density at 20 °C not to exceed ~860 kg/m³) and controls on fractional composition.
• Low‑temperature properties: pour/freezing point, cloud point, cold filter plugging/filtration performance and corresponding test requirements.
• Requirements for absence of water and mechanical impurities, and general quality assurance/testing procedures.
• Marking, packaging and storage recommendations consistent with national fuel handling practice.

Typical use and users

Primary users are petroleum refiners, fuel blenders and distributors, quality control and testing laboratories, vehicle and equipment fleet operators (road, rail, marine applications where specified), and national/regional regulators enforcing fuel quality. The standard is used where ECO‑designated diesel quality must be verified for supply and procurement.

Related standards

Related or comparable documents include other Uzbekistan state standards for liquid fuels (for example O'z DSt 989:2010 — Diesel fuel specifications) and widely used international/regional diesel specifications such as EN 590 (automotive diesel requirements) and ASTM D975 (U.S. diesel fuel standard). National/regional standards (e.g., GOST / TR CU variants) addressing diesel quality and low‑temperature performance are also relevant when comparing classes and test methods.

Keywords

O’z DSt 1134:2007; diesel fuel; ECO diesel; fuel specification; cetane number; density; low‑temperature properties; cold filterability; Uzbekistan national standard; liquid fuels.

FAQ

Q: What is this standard?

A: O’z DSt 1134:2007 is a Republic of Uzbekistan state standard that sets technical specifications (technical conditions) for ECO‑designated diesel fuel, defining grades, properties and test/quality requirements.

Q: What does it cover?

A: It covers classification of ECO diesel grades, limits for key physical and performance parameters (cetane number, density, fractional composition), low‑temperature behaviour (pour/cloud/freezing and filterability parameters), absence of water/mechanical impurities, and related sampling and testing provisions.

Q: Who typically uses it?

A: Refiners, fuel producers and distributors, testing laboratories, vehicle/fleet operators and regulators responsible for fuel quality and compliance in Uzbekistan and in supply chains that specify O’z DSt fuel requirements.

Q: Is it current or superseded?

A: Listed sources and commercial standards catalogues show O’z DSt 1134:2007 as active; users should verify with the national standards body (Uzstandard / the Agency for Standardization of the Republic of Uzbekistan) for any amendments or later replacements before relying on it for procurement or regulatory compliance.

Q: Is it part of a series?

A: Yes — it is part of the O’z DSt series of Uzbekistan state standards for fuels and related products; other O’z DSt documents address aviation fuels, general diesel fuel specifications and related test methods.

Q: What are the key keywords?

A: Diesel, ECO diesel, fuel specification, cetane, density, cold filterability, pour point, O’z DSt, Uzbekistan.