RECOMMENDED PRACTICE FOR SPLASH AND SPRAY EVALUATION
- Ground Vehicle Standard
- J2245_199404
- Issued
Scope
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a
It only applies to "A-B" comparisons done under the "same" conditions as outlined in the test procedure.
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b
Tests done at different sites may not necessarily be comparable, depending on the exact conditions and specific site locations at the time of the tests.
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c
Because uncontrollable variables such as wind speed and direction, water depth, humidity, and temperature can have a profound effect on measured results, small differences (on the order of 10 to 15%) in measured splash and spray may not be meaningful and the relevance of such small measured differences should be viewed with caution.
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d
Results from the testing should be reported as the difference between the 95% confidence bands and not as the differences between averages.
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e
Each configuration tested shall have a separate value with 95% confidence bands reported for each of eight wind conditions using the downwind rule, as outlined in the data reduction.
Data Sets - Support Documents
Issuing Committee
Truck and Bus Powertrain Steering Committee
The Heavy Duty Truck & Bus Powertrain Steering Committee supervises the SAE committees that are responsible for developing and maintaining standards, recommended practices and technical information reports related to heavy duty power trains. This includes 1) conventional energy management (diesel), alternative fuels (natural gas), mechanical energy storage (flywheels), electrical energy storage, (ultracapacitors), and pneumatic (compressed air, hydraulic hybrids); 2) power generation and conversion (diesel engines, generators, traction motors, hydraulic pumps and motors, retarders); 3) power and torque transmission (manual and automated transmissions, clutches, differentials, axles and drive shafts); 4) accessories and accessory drives; 5) any new technology that may arise that is related to heavy duty truck & bus power trains.
Reference
Number | Title |
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ASTME501 | This document is not part of the subscrption. |
ASTME524 | This document is not part of the subscrption. |