T/SSESB 1-2020 Active Group standards

T/SSESB 1-2020 The determination of humidity in pollutant emissions from stationary sources using capacitive method

Publish Date: 2020-09-22 Implement Date: 2020-10-01 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 1-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Analysis methods for pollutants in exhaust gas emissions

ICS Name: Integrated air quality

Publish Date: 2020-09-22

Implement Date: 2020-10-01

Scope

Scope: This standard specifies the capacitance method for measuring the humidity of waste gas from fixed pollution sources. This standard applies to the measurement of humidity in waste gas from fixed pollution sources. The detection limit of this method is 0.20%, the lower limit of measurement is 0.80%, and the upper limit of measurement is 40%; Main technical content: 7. Instruments and equipment 7.1 Composition of the capacitance humidity measurement instrument (hereinafter referred to as "the instrument") The instrument consists of a sample collection and transmission unit, a pretreatment unit, an analysis unit, and a data acquisition and processing unit. a) The sample collection and transmission unit includes a sampling probe, a transmission pipeline, and a heating device, etc. b) The pretreatment unit refers to a filtration device with waterproof and dustproof functions. The materials and installation of the pretreatment unit should not affect the measurement results. c) The analysis unit is used for humidity measurement analysis with a capacitance-type sensor, which has temperature and pressure compensation functions and calibration functions. d) The data acquisition and processing unit is used for data acquisition and processing, and should have recording, storage, and printing functions. 7.2 Performance requirements a) Indicator error: When the calibration range is ≤5.00%, the absolute error shall not exceed ±0.75%; when the calibration range is >5.00%, the relative error shall not exceed ±15%. b) Response time: ≤60 seconds. 8. Sampling locations and sampling points The sampling locations and sampling points shall be determined in accordance with the provisions of GB/T 16157, HJ 75, HJ/T 373, HJ/T 397, and HJ 836, etc. 9. Analysis steps 9.1 Sample measurement According to the instrument user manual, correctly connect all parts of the instrument, place the sampling probe at the specified position in the exhaust stack, and seal t