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Evaluation of the Quality of Petrol and Natural Gas Fuels

ガソリンおよび天然ガス燃料の品質評価 (AI 翻訳)

Anandhi P., Srividya M.

American Journal of Theoretical and Applied Statistics📚 査読済 / ジャーナル2026-07-11#その他経営インパクト: 調達リスク対象セクター: energy
DOI: 10.11648/j.ajtas.20261504.12
原典: https://doi.org/10.11648/j.ajtas.20261504.12
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🤖 gxceed AI 要約

日本語

本研究は、ガソリンと天然ガス燃料の品質をISO 8217:2017等の基準に基づき評価した。8社のサンプルを分析したところ、一部で密度の基準値下回り(灯油混和の疑い)、粘度の超過、硫黄分が50ppmを超えるものが60%以上に及ぶなど、品質管理の不備が明らかになった。燃料の環境適合性確保には継続的な監視と厳格な品質管理が必要だと結論づけている。

English

This study evaluates gasoline and natural gas quality against ISO 8217:2017 and GSA 141:2022 using samples from eight suppliers. Results reveal density below limits in some gasoline (possible kerosene adulteration), slightly elevated viscosity in others, and sulfur content above the 50 ppm limit in over 60% of samples, underscoring the need for stricter quality control and monitoring to ensure fuel integrity and environmental compliance.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

日本ではJIS規格による燃料品質管理が行われており、硫黄分や密度の基準適合は環境規制と直結する。本結果はサプライチェーン全体での品質監視の重要性を示唆し、輸入燃料の受け入れ検査などに示唆を与える。

In the global GX context

The paper contributes to global fuel quality scholarship by providing empirical evidence of widespread sulfur exceedance and possible adulteration across multiple suppliers, highlighting gaps between standards and actual practice that matter for air pollution control and environmental compliance in fuel supply chains.

👥 読者別の含意

🔬研究者:Useful for researchers studying fuel quality compliance and emissions-related contaminants.

🏢実務担当者:Relevant for fuel procurement and quality assurance teams in refineries or importers.

🏛政策担当者:Informs regulators on the need for stricter enforcement and monitoring of fuel sulfur limits.

📄 Abstract(原文)

Natural gas and gasoline are essential energy sources for transportation and industries worldwide, and their quality is crucial. This study examines a variety of gasoline and natural gas samples to determine which is better based on important factors such sulfur content, firmness, surface tautness, viscidity, and fattening value. Eight different fuel suppliers provided samples, which were tested in violation of established standards such as ISO 8217: 2017 and GSA 141: 2022. Two suppliers' gasoline samples showed densities that were marginally below the allowed limits, indicating possible adulteration with lower-density materials like kerosene. With the exception of one sample, which also displayed increased sulfur levels, surface tension values for almost all samples remained within permissible norms. Viscosity measurements for fuels from three sources were marginally above suggested standards, perhaps leading to improved pollutant emissions, even though all fuels satisfied the minimum calorific value requirements. Only three providers' goods met the maximum allowable limit of 50 ppm in terms of sulfur concentration, meaning that more than 60% of the examined fuel samples had sulfur levels beyond the allowed threshold. These repercussions highlight the need for ongoing monitoring and more stringent quality control throughout the gasoline supply chain in order to guarantee fuel integrity and environmental compliance.

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