HJ 544-2009Stationary source emission - Determination of sulfuric acid mist - Ion chromatography (English PDF)

Foreword

This standard is formulated to implement the "Environmental Protection Law of the

People's Republic of China" and "Law of the People's Republic of China on the Prevention

and Control of Atmospheric Pollution"; protect the environment; guarantee human health;

and stipulate the monitoring methods of sulfuric acid mist in exhaust gas of stationary

pollution source.

This standard specifies the ion chromatography for determining the sulfuric acid mist in

stationary source emission.

This standard is organized and formulated by Department of Science, Technology and

Standards of Ministry of Environmental Protection of the People's Republic of China.

Main drafting organization of this standard. Beijing Municipal Environmental Monitoring

Center.

This standard was approved by Ministry of Environmental Protection on December 30,

2009.

The standard shall be implemented on April 1, 2010.

The Ministry of Environmental Protection is responsible for the interpretation of this

standard.

Stationary source emission - Determination of sulfuric

acid mist - Ion chromatography (on trial)

1 Scope of application

This standard specifies the ion chromatography for determining the sulfuric acid mist in

stationary source emission

This standard applies to the determination of sulfuric acid mist in the stationary source

emission.

For the organized emission, when the filter cartridge is used for preparing 250mL sample,

the detection limit of this method is 0.12µg/mL; when sample volume is 400L, the

detection limit is 0.08mg/m3, the lower limit of determination is 0.3mg/m3, and the upper

limit of determination is 500mg/m3.

For the fugitive emission, when the filter membrane is used for preparing 250mL sample,

the detection limit of this method is 0.12µg/mL; when sample volume is 3m3, the detection

limit is 0.01mg/m3, and the lower limit of determination is 0.04mg/m3.

2 Normative references

The articles contained in the following documents have become part of this standard when

they are quoted herein. For the undated documents so quoted, the latest editions shall be

applicable to this standard.

GB/T 16157 The determination of particulates and sampling methods of gaseous

pollutants emitted from exhaust gas of stationary source

HJ/T 55 Technical guidelines for fugitive emission monitoring of air pollutants

HJ/T 373 Technical specifications of quality assurance and quality control for

monitoring of stationary pollution source (on trial)

3 Method and principle

In this method, glass fiber filter cartridge or quartz fiber filter cartridge is used for collecting

particulate matter sample in organized emission; superfine glass fiber filter membrane or

quartz fiber filter membrane is used for collecting particulate matter in fugitive emission.

Use water to extract. After removing the metal cation through pre-treatment column, inject

the sample into ion chromatograph. Determine the nature in accordance with the retention

sampling point inside the exhaust funnel for isokinetic sampling. Appropriately select

sampling time according to the concentration of sulfuric acid mist. Meanwhile, determine

the necessary temperature, pressure and other parameters. After sampling, carefully take

out filter cartridge. Place it into 250mL ground conical flask with stopper. Rinse the

sampling mouth and elbow with a little of distilled water. Collect and combine the cleaning

lotion into the conical flask. Cover up the flask with stopper. Bring it back to laboratory. Dry

the sampling mouth with cotton swab. Dry the elbow with suction bulb for standby. During

each sampling, at least three filter cartridges of samples shall be collected; take their

average value.

11 Precautions

In-series connect 2 striking absorption flasks that contain absorption liquid, at the back of

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