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Method 10 - Carbon Monoxide-NDIR

Text of Test Method 10 - Carbon Monoxide-NDIR PDF file
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Does EPA's Method 10 for carbon monoxide (CO) measurements require the use of an NDIR analyzer only, or can an electrochemical CO sensor be used? (This is not explicitly stated in Method 10). Also, is there a minimum measurement range for Method 10?

Yes, an electrochemical analyzer may be used for Method 10. Method 10 refers heavily to Method 7E, which notes that different techniques may be used as long as the performance tests in Section 13 are passed. No minimum measurement range is given for Method 10, since this will depend on the analyzer type used.

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