[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: 40CFR1065.301]



[Page 711]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 1065_ENGINE-TESTING PROCEDURES--Table of Contents

 

                Subpart D_Calibrations and Verifications

 

Sec.  1065.301  Overview and general provisions.





    (a) This subpart describes required and recommended calibrations and 

verifications of measurement systems. See subpart C of this part for 

specifications that apply to individual instruments.

    (b) You must generally use complete measurement systems when 

performing calibrations or verifications in this subpart. For example, 

this would generally involve evaluating instruments based on values 

recorded with the complete system you use for recording test data, 

including analog-to-digital converters. For some calibrations and 

verifications, we may specify that you disconnect part of the 

measurement system to introduce a simulated signal.

    (c) If we do not specify a calibration or verification for a portion 

of a measurement system, calibrate that portion of your system and 

verify its performance at a frequency consistent with any 

recommendations from the measurement-system manufacturer, consistent 

with good engineering judgment.

    (d) Use NIST-traceable standards to the tolerances we specify for 

calibrations and verifications. Where we specify the need to use NIST-

traceable standards, you may alternatively ask for our approval to use 

international standards that are not NIST-traceable.