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200 00$aGuidance to states on smoke opacity cutpoints to be used with the SAE J1667 in-use smoke test procedure
210  1$aAnn Arbor, Michigan :$cUnited States Environmental Protection Agency, National Vehicle and Fuel Emissions Laboratory,$d1999.
215   $a1 online resource (2 pages)
300   $a"EPA420-F-99-024."
320   $aIncludes bibliographical references (page 1).
517 3 $aGuidance to states on smoke opacity cutpoints to be used with the Society Automotive Engineers J1667 in-use smoke test procedure
606   $aVehicles$xMotors (Diesel)$xExhaust gas$zUnited States
606   $aMotor vehicles$zUnited States$xMotors (Diesel)$xExhaust gas
606   $aSmoke$xOptical properties
606   $aDiesel motor exhaust gas$xOptical properties
606   $aSmoke$xOptical properties$2fast
607   $aUnited States$2fast
615  0$aVehicles$xMotors (Diesel)$xExhaust gas
615  0$aMotor vehicles$xMotors (Diesel)$xExhaust gas.
615  0$aSmoke$xOptical properties.
615  0$aDiesel motor exhaust gas$xOptical properties.
615  7$aSmoke$xOptical properties.
712 02$aNational Vehicle and Fuel Emissions Laboratory (U.S.),
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996   $aGuidance to states on smoke opacity cutpoints to be used with the SAE J1667 in-use smoke test procedure$93261671
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