[Code of Federal Regulations]

[Title 40, Volume 31]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR1065.295]



[Page 710-711]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 1065_ENGINE-TESTING PROCEDURES--Table of Contents

 

                    Subpart C_Measurement Instruments

 

Sec.  1065.295  PM inertial balance for field-testing analysis.



    (a) Application. You may use an inertial balance to quantify net PM 

on a sample medium for field testing.

    (b) Component requirements. We recommend that you use a balance that 

meets the specifications in Table 1 of Sec.  1065.205. Note that your 

balance-based system must meet the linearity verification in Sec.  

1065.307. If the balance uses an internal calibration process for 

routine spanning and linearity verifications, the process must be NIST-

traceable. You may use an inertial PM balance that has compensation 

algorithms that are functions of other



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gaseous measurements and the engine's known or assumed fuel properties. 

The target value for any compensation algorithm is 0.0% (that is, no 

bias high and no bias low), regardless of the uncompensated signal's 

bias.