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GB 14554-1993 PDF English

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GB 14554-1993: Emission standards for odor pollutants
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GB 14554-1993: Emission standards for odor pollutants

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB14554-1993
GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA Replacing GBJ 4-73 1 Emission standards for odor pollutants APPROVED ON. JULY 19, 1993 Implemented on. JANUARY 15, 1994 Issued by. National Environmental Protection Administration Note. 1 This Standard substitutes the indicators of hydrogen sulfide and carbon disulfide in GBJ 4-73.

Table of Contents

1 Subject content and scope of application... 3 2 Normative references... 3 3 Terminology... 4 4 Technical contents... 4 5 Standard implementation... 8 6 Monitoring... 8 Annex A (Supplement) Calculation of emission concentration and emissions 11 Additional information... 11 Emission standards for odor pollutants This Standard is formulated to implement the Law of the People’s Republic of China on the Prevention and Control of Atmospheric Pollution, to control the pollution of odor pollutants to the atmosphere, to protect and improve the environment.

1 Subject content and scope of application

1.1 Subject content This Standard specifies the maximum emission limit at one time of eight odor pollutants, the odor concentration limit of complex odor substances, and the factory concentration limit at boundary of fugitive emission sources in chronological order. 1.2 Scope of application This Standard is applicable to the emission management of all the organizations that emit odor gases to the atmosphere throughout the country and the garbage dumps, the environmental impact assessment, design and completion acceptance of the construction projects, and the emission management after the completion of construction.

2 Normative references

GB 3095 Ambient air quality standard GB 12348 Standard of noise at boundary of industrial enterprises GB/T 14675 Air quality - Determination of odor - Triangle odor bag method GB/T 14676 Air quality - Determination of trimethylamine - Gas chromatography GB/T 14677 Air quality - Determination of toluene, dimethy1 benzene and styrene - Gas chromatography GB/T 14678 Air quality - Determination of sulfuretted hydrogen, methyl sulfhydryl, dimethyl sulfide and dimethyl disulfide - Gas chromatography

3 Terminology

3.1 Odor pollutants The gaseous substances that stimulate the olfactory organs and thus cause unpleasantness and damage to the living environment. 3.2 Odor concentration It refers to the dilution ratio required for diluting the odor gases (including the peculiar smell) with odorless air until it’s just odorless.

4 Technical contents

4.1 Standard grading The factory standard values at boundary of odor pollutants in this Standard are divided into three grades. 4.2 Standard values 4.2.1 The factory standard values at boundary of odor pollutants refer to the limits of fugitive emission sources. SEE Table 1.

5 Standard implementation

5.1 For the odor pollutants discharged by the pollutant discharging organizations (including the leakage and fugitive emission), the maximum detection value at one time (including the odor concentration) at the specified measuring points at boundary of the pollutant discharging organizations (with no other interference factors) shall be less than or equal to the factory standard values at boundary of odor pollutants. 5.3 The odor pollutants discharged and distributed by the pollutant discharging organizations through drainage and the odor concentration must be less than or equal to the factory standard values at boundary of odor pollutants.

6 Monitoring

6.1 Monitoring of organized emission sources 6.1.1 The minimum height of the exhaust cylinders shall not be less than 15m. 6.1.4 The sampling frequency of the organized emission sources shall be determined according to the production cycle. For the production cycle within 8h, SAMPLE once every 2h; for the production cycle of greater than 8h, SAMPLE once every 4h. TAKE the maximum measured value. 6.2 Monitoring of fugitive emission sources 6.2.1 Sampling point The sampling points for monitoring at boundary of factories shall be set on the downwind side at boundary of factories, or on the boundary line in the direction with the presence of odor. 6.4 Determination The methods for the determination of each individual odor pollutant and odor concentration in this Standard are shown in Table 3.

Annex A

(Supplement) Calculation of emission concentration and emissions A1 Emission concentration ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.


      

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