Standard No.:	GB 25466.1-2025
English Name:	Emission standard of air pollutants for lead and zinc industry
Chinese Name:	铅、锌工业大气污染物排放标准
Professional Classification:	GB    National Standard
Source Content Issued by:	SAMR;SAC
Issued on:	2025-12-02
Implemented on:	2026-1-1
Status:	to be valid
Superseding:	GB 25466-2010 Emission standard of pollutants for lead and zinc industry
Target Language:	English
File Format:	PDF
Word Count:	7000 words
Translation Price(USD):	210.0
Delivery:	via email in 1~3 business day

GB 25466.1-2025 Emission standard of air pollutants for lead and zinc industry English, Anglais, Englisch, Inglés, えいご This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered. ICS CCS H National Standard of the People's Republic of China ‌GB 25466.1-2025 Replaces GB 25466-2010 Emission standard of air pollutants for lead and zinc industry 铅、锌工业大气污染物排放标准 Issue date: 2025-12-02 Implementation date: 2027-01-01 Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China the Standardization Administration of the People's Republic of China Contents Foreword 1 Scope 2 Normative References 3 Terms and Definitions 4 Control Requirements for Organized Emissions 5 Control Requirements for Fugitive Emissions 6 Pollution Monitoring Requirements at Enterprise Boundaries 7 Pollutant Monitoring Requirements 8 Implementation and Supervision 1 Scope This standard specifies the control requirements, monitoring, and supervision and management requirements for air pollutant emissions from the lead and zinc industry. This standard applies to the management of air pollutant emissions from existing lead and zinc industrial enterprises or production facilities, as well as to the environmental impact assessment of construction projects in the lead and zinc industry, the design of environmental protection facilities, the acceptance of completed environmental protection facilities, the issuance of pollutant discharge permits, and the management of air pollutant emissions after these projects are put into operation. 2 Normative References The following documents, or the clauses cited therein, are referenced in this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including all amendments) applies. If other documents are superseded, modified, or revised by new ones, the new documents apply. GB/T 4754-2017 Industrial Classification for National Economic Activities GB/T 15264 Ambient Air — Determination of Lead — Flame Atomic Absorption Spectrophotometry GB/T 16157 Determination of Particulates and Sampling Methods of Gaseous Pollutants from Exhaust Gas of Stationary Sources HJ/T 42 Stationary Source Emission — Determination of Nitrogen Oxides — Ultraviolet Spectrophotometric Method HJ/T 43 Stationary Source Emission — Determination of Nitrogen Oxides — Hydrochloric Naphthylethylenediamine Spectrophotometric Method HJ/T 55 Technical Guidelines for Fugitive Emission Monitoring of Air Pollutants HJ/T 56 Stationary Source Emission — Determination of Sulfur Dioxide — Iodometric Method HJ 57 Stationary Source Emission — Determination of Sulfur Dioxide — Constant Potential Electrolysis Method HJ/T 64.1 Stationary Source Emission — Determination of Cadmium — Flame Atomic Absorption Spectrophotometric Method HJ/T 64.2 Stationary Source Emission — Determination of Cadmium — Graphite Furnace Atomic Absorption Spectrophotometric Method HJ/T 64.3 Stationary Source Emission — Determination of Cadmium — p-Azobenzenediazoaminoazobenzene Sulfonic Acid Spectrophotometric Method HJ 75 Specifications for Continuous Emissions Monitoring of Flue Gas Emitted from Stationary Sources (SO₂, NOx, Particulates) HJ 77.2 Ambient Air and Waste Gas — Determination of Polychlorinated Dibenzo-p-dioxins (PCDDs) and Polychlorinated Dibenzofurans (PCDFs) — Isotope Dilution HRGC-HRMS HJ/T 397 Technical Specifications for Stationary Source Emission Monitoring HJ 533 Ambient Air and Waste Gas — Determination of Ammonia — Nessler's Reagent Spectrophotometric Method HJ 538 Stationary Source Emission — Determination of Lead — Flame Atomic Absorption Spectrophotometry (Trial) HJ 539 Ambient Air — Determination of Lead — Graphite Furnace Atomic Absorption Spectrophotometry HJ 540 Stationary Source Emission — Determination of Arsenic — Silver Diethyldithiocarbamate Spectrophotometric Method HJ 542 Ambient Air — Determination of Mercury — Sulfhydryl Cotton Enrichment-Cold Atomic Fluorescence Spectrophotometry (Trial) HJ 543 Stationary Source Emission — Determination of Mercury — Cold Vapor Atomic Absorption Spectrophotometry (Trial) HJ 544 Stationary Source Emission — Determination of Sulfuric Acid Mist — Ion Chromatography HJ 629 Stationary Source Emission — Determination of Sulfur Dioxide — Non-dispersive Infrared Absorption Method HJ 657 Ambient Air and Waste Gas — Determination of Metals in Particulate Matter — Inductively Coupled Plasma Mass Spectrometry HJ 685 Stationary Source Emission — Determination of Lead — Flame Atomic Absorption Spectrophotometry HJ 692 Stationary Source Emission — Determination of Nitrogen Oxides — Non-dispersive Infrared Absorption Method HJ 693 Stationary Source Emission — Determination of Nitrogen Oxides — Constant Potential Electrolysis Method 3 Terms and Definitions For the purposes of this standard, the following terms and definitions apply. 3.1 lead and zinc industry The industry involved in producing lead and zinc metal mineral products through mining and beneficiation processes, and producing lead, zinc metal products, and other valuable metals using lead and zinc metal mineral products as the main raw materials (with the proportion of imported secondary resources containing lead and zinc not exceeding 40%). It includes Lead and Zinc Mining (B0912) and Lead and Zinc Smelting (C3212) in GB/T 4754-2017. 3.2 lead smelting The production process of manufacturing lead metal products and other valuable metals using lead metal mineral products as the main raw materials, including production stages such as material preparation, smelting, acid making, fire refining, electrolysis, and comprehensive recovery of valuable metals. 3.3 zinc smelting The production process of manufacturing zinc metal products and other valuable metals using zinc metal mineral products as the main raw materials, including production stages such as material preparation, roasting, acid making, hydrometallurgical leaching, solution purification, electrolysis, and comprehensive recovery of valuable metals. 3.4 secondary resources containing lead and zinc Lead paste, lead filter cake, hot-dip galvanizing slag, zinc-containing fume dust, and other lead- or zinc-containing materials that meet process blending requirements, excluding metal mineral products. 3.5 rotary kiln using oxygen enriched combustion A rotary kiln that uses oxygen-enriched gas (oxygen-containing air with an oxygen content higher than 30%) for combustion. 3.6 fugitive gas collecting The process of collecting fugitive gas escaping from the feeding and discharging ports and slagging ports of smelting furnaces. 3.7 comprehensive recovery furnace A smelting furnace used for comprehensive treatment of waste residues such as copper dross and anode slime to recover valuable metals like copper, gold, silver, and bismuth. 3.8 oxygen content The reference value for the oxygen content in flue gas specified for converting the concentration of air pollutants from combustion sources. 3.9 standard state The state at a temperature of 273.15 K and a pressure of 101.325 kPa. The air pollutant emission concentration limits specified in this standard are all based on dry gas under standard state. 3.10 stack height The vertical height from the ground plane where the stack (or its main building structure) is