§ 89.425-96 - Particulate adjustment factor.

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The following equation may be used to adjust the particulate measurement when the test fuel specified in Table 4 of Subpart D of this Part is used:
PMadj=PM−[BSFC *0.0917 *(FSF−USLFCA)] Where: PMadj=adjusted measured PM level [g/Kw-hr] PM=measured weighted PM level [g/Kw-hr] BSFC=measured brake specific fuel consumption [G/Kw-hr] FSF=fuel sulfur weight fraction USLFCA=upper sulfur level weight fraction of California specification. This adjustment only applies to engines with no exhaust gas after treatment. No adjustment is provided for engines with exhaust gas after treatment. Pt. 89, Subpt. E, App. A

                    
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