Research Article
Rapid and Simultaneous Prediction of Eight Diesel Quality Parameters through ATR-FTIR Analysis
Table 2
Results of quality parameter assays using the reference methods in accordance with ANP Resolution no. 65 [
41].
| | Quality parameter | Unit | Reproducibility | Repeatability | Range of conformity | Range of measured values | Number of nonconforming samples |
| | Density | kg·m−3 | ±0.5 | ±0.1 | 820.0 to 865.0 | 830.6 to 860.4 | 0 | | Flash point | °C | ±3 | ±1 | 38 | 8 to 70 | 16 | | Total sulfur | % (w/w) | ±0.01 | ±0.002 | <0.05a or < 0.18b | 0.01 to 0.19 | 4 | | T10 | °C | ±4.2 | ±1.8 | >180.0 | 158.9 to 234.1 | 75 | | T50 | °C | ±3.0 | ±0.9 | 245.0 to 310.0 | 250.9 to 305.8 | 0 | | T85 | °C | ±5.2 | ±1.4 | >360.0 | 247.3 to 369.5 | 40 | | Cetane index | — | ±2.0 | — | >42.0 | 41.1 to 54.2 | 1 | | Biodiesel content | % (v/v) | ±0.2 | ±0.1 | 4.5–5.5 | 0.6 to 7.4 | 41 |
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aFor S50 diesel samples, maximum sulfur content is 0.05% (w/w); bfor S1800 diesel samples, maximum sulfur content is 0.18% (w/w).
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