Division 3.5.1 Measurement equipment verification
United Kingdom
A verification of the demanded requirements defined in Table 2 shall be performed for each measurement system. At least 10 reference values between xmin and the ‘max calibration’ value defined in accordance with paragraph 3.5 shall be introduced to the measurement system and the response of the measurement system shall be recorded as measured value.
For the linearity verification the measured values shall be compared to the reference values by using a least squares linear regression in accordance with paragraph A.3.2 of Appendix 3 to Annex 4 to UN/ECE Regulation 49 Rev.06.
Notes on Division 3.5
Footnotes
- f1
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‘Accuracy’ means the deviation of the analyzer reading from a reference value which is traceable to a national or international standard.
- f2
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‘Rise time’ means the difference in time between the 10 percent and 90 percent response of the final analyzer reading (t90 – t10).
- f3
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The ‘max calibration’ values shall be 1,1 times the maximum predicted value expected during all testruns for the respective measurement system.