GB14470.1-2002

Discharge standard for water pollutants from ordnance industry--Powder and explosive

兵器工业水污染物排放标准火炸药

GB 14470.1-2002 — действующий обязательный национальный стандарт Китая: Discharge standard for water pollutants from ordnance industry--Powder and explosive. Отрасль: Химия. Тема: Безопасность продукции. Дата вступления в силу: 1 июл. 2003 г..

Применимость зависит от продукции, схемы сертификации, уведомлений компетентных органов и переходных правил. Закажите перевод или проверьте источник, прежде чем использовать эту запись в решениях по соответствию.

Обзор требований

Этот обзор пока доступен только на английском языке.

Область применения

This standard applies to the discharge management of water pollutants from the ordnance industry, specifically focusing on the manufacturing of powder and explosives. It is applicable to all existing and new ordnance industrial enterprises in China, covering environmental impact assessments, facility design, and post-construction pollution supervision. It categorizes regulations based on production scale, manufacturing processes, and specific product types such as nitroglycerin, TNT, and nitrocellulose.

Технические требования

The standard establishes time-based tiered limits for water pollutants, dividing facilities into those constructed before June 30, 2003, and those built or expanded thereafter. It specifies the maximum allowable daily average discharge concentrations and the maximum allowable wastewater discharge volume per ton of product. Compliance with both concentration limits and production-based volume caps is mandatory. It dictates specific control parameters for various chemical compounds, including Biochemical Oxygen Demand (BOD5), Chemical Oxygen Demand (CODCr), suspended solids (SS), pH, and color. Additionally, it sets stringent concentration limits for characteristic ordnance pollutants such as trinitrotoluene (TNT), dinitrotoluene (DNT), hexogen (RDX), nitroglycerin (NG), and lead (Pb). The standard also outlines specific production process requirements to minimize pollution at the source. This includes mandating closed-loop water recycling for nitroglycerin transport, acid recovery in nitrocellulose manufacturing, and strict treatment protocols for alkaline and acidic wastewater in TNT production. Direct discharge of untreated alkaline wastewater from TNT refining is strictly prohibited.

Методы испытаний

Monitoring must occur at the enterprise's wastewater discharge points, with specific sampling required for lead at the workshop or treatment facility outlet. The standard mandates that sampling frequency be determined by the production cycle, taking samples every two hours for cycles under eight hours, and every four hours for longer cycles. Wastewater volume calculations must exclude indirect cooling water and domestic sewage. Analytical methods reference various GB and GB/T standards, utilizing techniques such as the glass electrode method for pH, the dilution and inoculation method for BOD5, and oscilloscopic polarography for detecting heavy metals and specific explosive compounds like DNT and NG.

Частые вопросы

What products are regulated under GB 14470.1-2002?

The standard regulates water pollutant discharges from the manufacturing of various explosives and propellants, including nitroglycerin, TNT, RDX, and nitrocellulose, as well as industrial waste acid concentration processes.

Are there different compliance tiers within GB 14470.1-2002?

Yes, it introduces a time-based tier system. Facilities constructed or approved before June 30, 2003, must comply with Table 1 requirements, while those built or expanded after July 1, 2003, are subject to the stricter Table 2 limits.

Does GB 14470.1-2002 replace any previous standards?

It consolidates and replaces four previous standards (GB 14470.1-93, GB 4274-84, GB 4275-84, and GB 4276-84), establishing a unified and updated framework for water pollutant management in the ordnance industry.

The summary above provides a high-level overview of GB 14470.1-2002. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 14470.1-2002 today to access all detailed parameters, tables, and testing procedures.

Подсказки по применимости

Тип: Охрана окружающей среды
CCS: Z64
ICS: 13.060.30
Компетентное ведомство: Ministry of Ecology and Environment
Технический комитет: Ministry of Ecology and Environment

Связи

Заменяет:GB 4276-1984, GB 14470.1-1993, GB 4274-1984, GB 4275-1984