T/SSESB 10-2024 Active Group standards

T/SSESB 10-2024 The determination of ammonia in fixed pollution source waste gas using portable tunable laser absorption spectroscopy

Publish Date: 2024-06-12 Implement Date: 2024-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/SSESB 10-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Integrated air quality

Publish Date: 2024-06-12

Implement Date: 2024-07-01

Scope

Main technical content: 9. Analysis steps 9.1 Test preparation - Connect all components of the portable tunable laser absorption spectrometer according to the instrument user manual, turn on the instrument, and wait until the sampling unit and analysis unit sample chamber reach the specified temperature. Then, perform airtightness checks according to the instrument user manual. If the instrument airtightness check fails, leak detection and maintenance should be carried out until the check passes. 9.2 Instrument verification 9.2.1 Zero point verification - After the instrument runs stably, introduce zero point gas into the analyzer at the specified sampling flow rate, thoroughly purge the sample chamber, and perform zero point verification according to the steps specified in the instrument user manual. 9.2.2 Range calibration and adjustment - Introduce and measure ammonia standard gas at the specified sampling flow rate. If the indicated error meets the requirements of 7.1.2 a), the instrument can be used; if not, adjust the instrument according to the steps specified in the user manual to meet the measurement requirements. 9.3 Sample measurement 9.3.1 Place the front end of the sampling tube in the exhaust pipe, move it to the sampling point, and seal the sampling hole to prevent leakage. 9.3.2 Start the pump and take samples at the specified sampling flow rate. After the instrument runs stably, save the measurement data by the minute, measure continuously for 5–15 minutes, and take the average value as one measurement value. Simultaneously measure the water volume fraction. 9.3.3 After completing the sample measurement in the same exhaust pipe, clean the instrument with zero point gas to return the indicated value to near zero, then proceed to the next exhaust pipe. 9.3.4 Before shutting down, clean the instrument with zero point gas to return the indicated value to near zero and maintain stability. Turn off the instrument power, discon