Octane Number Tester Standard Reference Fuel Oil

Overview

Keyuan Instruments’ Octane Number Tester Standard Reference Fuel Oil is a precisely formulated hydrocarbon blend designed for calibration, verification, and routine performance validation of research octane number (RON) and motor octane number (MON) testing instruments—primarily ASTM D2699 and D2700 compliant single-cylinder CFR engines. Unlike generic fuel stocks, this reference material is engineered to deliver stable, repeatable combustion behavior under controlled engine operating conditions, enabling laboratories to maintain traceability to NIST-traceable primary standards. While the base formulation adheres to internationally recognized compositional guidelines for octane reference fuels (e.g., iso-octane/normal-heptane binary blends and certified tertiary mixtures), this domestic production variant is manufactured under strict quality control protocols in Jiangsu Province to meet the physical and chemical consistency requirements essential for inter-laboratory reproducibility.

Key Features

• Batch-certified composition with documented hydrocarbon distribution profile (C₄–C₁₂ aliphatics, naphthenes, and controlled aromatic content)
• Stable vapor pressure (RVP) and distillation curve (ASTM D86) aligned with ASTM D4814 specifications for reference fuel handling
• Traceable density (ASTM D1298) and kinematic viscosity (ASTM D445) at 20 °C and 40 °C
• Consistent autoignition delay characteristics verified via standardized CFR engine test cycles
• Supplied in inert-gas-purged, amber glass containers to prevent oxidation and light-induced degradation
• Accompanied by Certificate of Analysis (CoA) including batch-specific RON/MON values, uncertainty budget, and storage stability data (≥12 months unopened at 15–25 °C)

Sample Compatibility & Compliance

This standard fuel oil is fully compatible with all major octane rating platforms, including but not limited to CFR F1-F4, F5-F6, and modern automated octane analyzers equipped with knock detection sensors and digital combustion timing control. It meets the minimum purity and volatility criteria defined in ASTM D2699 Annex A1 and ISO 5164 for primary reference fuel use. Each production lot undergoes third-party verification against NIST SRM 1839 (Primary Octane Reference Fuels) or equivalent metrological references. The product supports GLP-compliant laboratory workflows and is suitable for internal method validation per ISO/IEC 17025:2017 Clause 7.7. The packaging and labeling comply with UN GHS hazard communication standards (Class 3 Flammable Liquid, Packing Group II).

Software & Data Management

While this is a consumable reference material—not an instrument—the associated CoA and batch documentation are structured to integrate seamlessly into LIMS environments. Digital CoAs are provided in PDF/A-1b format with embedded metadata (batch ID, manufacturing date, expiry date, certified values, and uncertainty). Keyuan Instruments maintains full audit trails for raw material sourcing, blending records, and QC test logs for ≥10 years, supporting FDA 21 CFR Part 11 compliance where electronic records are used for instrument calibration verification. Customers may request CSV or XML exports of CoA data for automated import into laboratory informatics systems.

Applications

• Calibration and drift correction of CFR octane engines prior to sample testing
• Performance qualification (PQ) and operational qualification (OQ) of new or refurbished octane testers
• Participation in proficiency testing schemes (e.g., ILAC P15, ASTM D6751 interlaboratory studies)
• Verification of instrument sensitivity to knock onset under varying compression ratios and spark advance settings
• Supporting regulatory submissions requiring documented measurement traceability (e.g., EPA Tier 3 gasoline certification, CNPC fuel specification compliance)
• Training and operator competency assessment in petroleum testing laboratories

FAQ

Is this fuel oil certified to ASTM D2699 / D2700?
Yes—each batch is validated against the repeatability and reproducibility limits specified in ASTM D2699 Annex A2 and D2700 Annex A1.
What is the shelf life and recommended storage condition?
Unopened containers retain certified properties for 12 months when stored at 15–25 °C, away from direct sunlight and ignition sources.
Can this fuel be used for both RON and MON testing?
Yes—its formulation enables accurate calibration across both test methods; MON testing requires preheated intake air and specific engine timing per ASTM D2700.
Do you provide NIST-traceable calibration reports?
The CoA includes traceability statements to national metrology institutes; full NIST SRM cross-validation reports are available upon special request and subject to additional verification protocol.
Is custom blending available for non-standard octane indices?
Yes—Keyuan Instruments offers bespoke reference fuel development (e.g., intermediate RON 87–93, oxygenated blends per ASTM D4814 Table 1) under contract manufacturing agreements with full documentation support.