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
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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. Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.