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2518 Table A4-18. 2519 2520 Check of confidence intervals — Example 4 2521 2522 Reference mass Mass value (kg) 90% confidence interval (percentage of mean SAR) Low mass 17,825 (0.01399/0.94100) x 100 = 1.52% Mid mass 19,953 (0.00823/0.84238) x 100 = 0.98% High mass 22,080 (0.01505/0.78198) x 100 = 1.93% 2523 The 90 percent confidence intervals at the low and high reference gross masses of the FEM are above 2524 the confidence interval limit of 1.5 percent, as defined in § A38.5.3.4. 2525 2526 In such case, a penalty equal to the amount that the 90 percent confidence interval exceeds ±1.5 percent 2527 is applied to the mean SAR values as follows: 2528 2529 2530 Table A4-19. 2531 2532 Corrected SAR values — Example 4 2533 2534 Reference mass Mass value (kg) Corrected SAR value (km/kg) Low mass 17,825 0.94100 x [1 - (1.52-1.5)/100] =
0.94081 High mass 22,080 0.78198 x [1 - (1.93-1.5)/100] =
0.77862 2535 2536 As a result, the following mean SAR values associated to each of the three reference masses of the FEM 2537 can be used for the metric determination. 2538 2539 Table A4-20. 2540 2541 Mean SAR values — Example 4 2542 2543 Reference mass Mass value (kg) Mean SAR value (km/kg) Low mass 17,825 0.94081 Mid mass 19,953 0.84238 High mass 22,080 0.77862 2544 2545
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Appendix 5: References 2546 2547 2548 2549
1. International Standards and Recommended Practices, Annex 16 to the Convention 2550 on International Civil Aviation, Environmental Protection, Volume III – Aeroplane CO2 2551 Emissions, First Edition, July 2017, Applicable 1 January 2018, Including Amendment 2552 1 of January 1, 2021 2553 2554
2. International Standards and Recommended Practices, Annex 16 to the Convention 2555 on International Civil Aviation, Environmental Protection, Doc 9501 Environmental 2556 Technical Volume III, Procedures for the CO2 Emissions Certification of Aeroplanes, 2557 First Edition, 2018 2558 2559
3. ASTM International D1655-15 entitled “Standard Specification for Aviation Turbine 2560 Fuels”. This ASTM International publication may be obtained from the ASTM 2561 International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA, 2562 19428-2959 USA, www.astm.org. 2563 2564
4. UK MOD DEF-STAN 91-91, Issue 7, Amendment 3, entitled “Turbine Fuel, Kerosene 2565 Type, Jet A-1”. This United Kingdom Ministry of Defence Standard may be obtained 2566 from Defence Equipment and Support, UK Defence Standardization, Kentigern 2567 House, 65 Brown Street, Glasgow G2 8EX, UK. 2568 2569
5. ASTM International D4809-13 entitled “Standard Test Method for Heat of Combustion 2570 of Liquid Hydrocarbon Fuels by Bomb Calorimeter (Precision Method)”. This ASTM 2571 International publication may be obtained from the ASTM International, 100 Barr 2572 Harbor Drive, PO Box C700, West Conshohocken, PA, 19428-2959 USA, 2573 www.astm.org. 2574 2575
6. ASTM International D4052-11 entitled “Standard Test Method for Density and 2576 Relative Density and API Gravity of Liquids by Digital Density Meter”. This ASTM 2577 International publication may be obtained from the ASTM International, 100 Barr 2578 Harbor Drive, PO Box C700, West Conshohocken, PA, 19428-2959 USA, 2579 www.astm.org. 2580 2581
7. ASTM International D445-15 entitled “Standard Test Method for Kinematic Viscosity 2582 of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)”. This 2583 ASTM International publication may be obtained from the ASTM International, 100 2584 Barr Harbor Drive, PO Box C700, West Conshohocken, PA, 19428-2959 USA, 2585 www.astm.org. 2586 2587 2588 2589 2590 2591 2592