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Code of Federal Regulations (Last Updated: May 6, 2024) |
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Title 40 - Protection of Environment |
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Chapter I - Environmental Protection Agency |
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SubChapter C - Air Programs |
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Part 89 - Control of Emissions from New and in-Use Nonroad Compression-Ignition Engines |
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Subpart D - Emission Test Equipment Provisions |
§ 89.308-96 - Sampling system requirements for gaseous emissions.
Latest version.
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(a) For each component (pump, sample line section, filters, and so forth) in the heated portion of the sampling system that has a separate source of power or heating element, use engineering judgment to locate the coolest portion of that component and monitor the temperature at that location. If several components are within an oven, then only the surface temperature of the component with the largest thermal mass and the oven temperature need be measured.
(b) If water is removed by condensation, the sample gas temperature or sample dewpoint must be monitored either within the water trap or downstream. It may not exceed 7 °C.