This standard applies to the wastewater discharge management of propellants used in aerospace, as well as the environmental impact assessment, design, completion acceptance and post-completion discharge management of construction projects. This standard also applies to units using hydrazine and amine fuels. GB 14374-1993 Aerospace Propellant Water Pollutant Emission Standard GB14374-1993 Standard download and decompression password: www.bzxz.net

National Standard of the People's Republic of China
Discharge standard of water pollutants for space propellant
CB14374-93
In order to implement the "Environmental Protection of the People's Republic of China" Protection Law" and "Water Pollution Prevention and Control Law of the People's Republic of China" to prevent and control the pollution of aerospace propellants to the water environment and formulate this standard.
1 Subject content and scope of application
1.1 Subject content
This standard stipulates the maximum allowable discharge concentration of aerospace propellant water pollutants by year according to the destination of wastewater discharge. 1.2 Scope of application
This standard applies to the wastewater discharge management of propellants used in aerospace, as well as the environmental impact assessment, design, completion acceptance and post-completion discharge management of construction projects.
This standard also applies to units using hydrazine and amine fuels. 2 Reference standards
GB3097
GB3838
GB6920
GB7479
GB7487
GB7488
GB 8978||tt| | GB11889 | | tt | | GB11901 | | tt | | GB11914 | Method
Water quality
Water quality
Water quality
Determination of ammonium Nessler's reagent colorimetric method
Determination of cyanide Part 2: Determination of cyanide Determination of five-day biochemical oxygen demand (BOD,) Dilution and inoculation method Comprehensive wastewater discharge standards
Water quality
Water quality
Water quality
Water quality
GB /T14375
GB/T 14376
GB/T 14377
GB/T14378
3 Technical content
Determination of aniline compounds N-(1 -Naphthyl) ethylenediamine azo spectrophotometric method Determination of suspended solids Gravimetric method
Determination of chemical oxygen demand Dichromate method
Determination of formaldehyde Acetylacetone spectrophotometric method Water quality || tt | Photometric method Determination of triethylamine Bromophenol blue spectrophotometric method Determination of diethylenetriamine Salicylaldehyde spectrophotometric method 3.1 Discharge destination
Pollutants specified in this standard shall not be discharged into Class N and V waters in GB3838 and Waters other than the third category sea areas in GB3097. 3.2 Standard value
National Environmental Protection Administration approved on 1993-05-22 for implementation on 1993-12-01
GB14374-93
3.2.1 Construction projects initiated before December 1, 1993 And the enterprises that are put into operation after completion shall be implemented according to Table 1. Table 1
Serial number
1
2
3
4
5
6
7
8
9
10
11
12
13
Note: The standard value is the maximum value of one monitoring . Maximum allowable emission concentration of pollutants, mg/LpH value
Biochemical oxygen demand (BODs)
Chemical oxygen demand (CODzt)
Suspended solids
Ammonia nitrogen|| tt | Amine
Diethylene Triamine
3.2.2
2Construction projects initiated on December 1, 1993 and enterprises put into operation after completion shall be implemented according to Table 2. Table 2
Serial number
1
2
3
4
5
6
7
8
9
10
11
12
13
Note: The standard value is the maximum value of one monitoring . Maximum allowable emission concentration of pollutants, mg/LPH value
Biochemical oxygen content (BOD.)
Chemical oxygen demand (CODe)
Suspended solids
Ammonia nitrogen| | tt | Ethylamine
Diethylenetriamine
6~9
80
200
250
40
0.5| |tt||3. 0
3.0
0.1
0. 2
0.5
10. 0
10.0||tt ||6~9
60
150bzxz.net
200
25
0.5
2.0
2.0||tt ||0.1
0. 2
0.5
10. 0
10.0
4 monitoring
4.1 sampling point||tt| |GB14374--93
The sampling points for hydrazine, methylhydrazine, unylidenedimethylhydrazine, lanethylamine, and diethylenetriamine should be located at the discharge outlet of the workshop or treatment facility; other pollutants should be included in the total discharge Oral sampling. Set up permanent signs at discharge outlets. 4.2 Sampling frequency
The monitoring frequency is determined according to the production cycle. If the production cycle is within 8 hours, sampling will be done every 2 hours; if the production cycle is greater than 8 hours, sampling will be done every 4 hours.
4.3 Determination method
The determination method of pollutants in this standard is carried out according to Table 3. Table 3
Sequence
1
2
3
4
5
6
7
8
9
11
12
No.
pH value
item
biochemical zone Oxygen content (BOD)
Chemical Oxygen Demand Egg (CODα)
Suspended solids
Ammonia nitrogen
Cyanide
Formaldehyde
Anilines
Monomethylhydrazine
Trimethylhydrazine
Triethylamine
Diethylenetriamine
Standard implementation supervision
Glass Electrode method
Measurement method
Dilution and inoculation method
Dichromate method
Gravimetric method
Nessler's reagent colorimetric method||tt| |Isonicotinic acid-pyrazolone colorimetric method
Acetyl carnitone spectrophotometric method
Spectrophotometry
Sodium ferromominide spectrophotometry
Lonphenol blue spectrophotometry
Salicylaldehyde spectrophotometry
This standard is approved by the people at all levels The government's environmental protection administrative department is responsible for supervising implementation. Additional notes:
Method standard number
GB6920
GB7488
GB11914
GB11901
GB7479
GB7487||tt ||GB13197
GB11889
GB/T14375
GB/T14376
GB/T14377
GB/T14378
The Science and Technology Standards Department of the Environmental Protection Bureau and the Construction Department of the former Ministry of Aerospace Industry jointly proposed. This standard was drafted by the Seventh Design Institute of the former Ministry of Aerospace Industry. The main drafters of this standard are Xu Zhitong and Wang Lancui. This standard is interpreted by the National Environmental Protection Administration.
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