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SAE J 1094:2011

SAE J 1094:2011

$25.35

Constant Volume Sampler System for Exhaust Emissions Measurement

Published By Publication Date Number of Pages
SAE 2011-09-06 48
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This SAE Information Report describes uniform laboratory techniques for employing the constant volume sampler (CVS) system in measuring various constituents in the exhaust gas of gasoline engines installed on passenger cars and light trucks. The techniques described relate particularly to CVS systems employing positive displacement pumps. This is essentially an almost obsolete system relative to usage in industry and government. Current practice favors the use of a critical flow venturi to measure the diluted exhaust flow. In some areas of CVS practice, alternative procedures are given as a guide toward development of uniform laboratory techniques.
The report includes the following sections:
  1. Introduction

    1. 1. Scope
    2. 2. References
    3. 2.1 Applicable Publications
    4. 3. Definitions
    5. 4. Test Equipment
    6. 4.1 Sampler
    7. 4.2 Bag Analysis
    8. 4.3 Modal Analysis
    9. 4.4 Instrument Operating Procedures
    10. 4.5 Supplementary Discussions
    11. 4.6 Tailpipe Connections
    12. 4.7 Chassis Dynamometer
    13. 5. Operating and Calibrating Procedure
    14. 5.1 Calibration
    15. 5.2 Operating Procedures
    16. 6. Data Analysis
    17. 6.1 Bag Analysis
    18. 6.2 Modal Analysis
    19. 6.3 Background
    20. 6.4 Fuel Economy
    21. 7. Safety
    22. 8. Notes

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SAE J 1094:2011
$25.35