GB/T 20424-2025 PDF EnglishUS$95.00 · In stock · Download in 9 seconds
GB/T 20424-2025: The specification for limit on harmful element content of the heavy nonferrous metal concentrates products Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 20424: Historical versions
Similar standardsGB/T 20424-2025: The specification for limit on harmful element content of the heavy nonferrous metal concentrates products---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/GBT20424-2025 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.150.01 CCS H 62 Replacing GB/T 20424-2006 The Specification for Limit on Harmful Element Content of the Heavy Nonferrous Metal Concentrates Products Issued on. FEBRUARY 28, 2025 Implemented on. SEPTEMBER 1, 2025 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 1 Scope... 5 2 Normative References... 5 3 Terms and Definitions... 7 4 Limit Requirements... 8 5 Test Methods... 10 6 Inspection Rules... 11ForewordThis Document was drafted as per the rules specified in GB/T 1.1-2020 Directives for Standardization – Part 1.Rules for the Structure and Drafting of Standardizing Documents. This Document replaced GB/T 20424-2006 The Specification for Limit on Harmful Element Content of the Heavy Metal Concentrates Products. Compared with GB/T 20424-2006, the major technical changes of this Document are as follows besides the structural adjustments and editorial modifications. a) Change the terms and definitions of some concentrates; and add the term and definition of “antimony concentrate” (see Clause 3 of this Edition; Clause 3 of the 2006 Edition); b) Change the limit of As in lead concentrate from 0.70% to 0.60% (see 4.2 of this Edition; 4.2 of the 2006 Edition); c) Add the limits of Cd and Tl in lead concentrate to 0.40% and 0.02% respectively (see 4.2 of this Edition); d) Change the limit of As in zinc concentrate from 0.60% to 0.50% (see 4.3 of this Edition; 4.3 of the 2006 Edition); e) Add the limit of Tl in zinc concentrate to 0.02% (see 4.3 of this Edition); f) Add the limit of Tl in lead and zinc bulk concentrate to 0.02% (see 4.4 of this Edition); g) Change the limit of As in tin concentrate from 2.50% to 2.00% (see 4.5 of this Edition; 4.5 of the 2006 Edition); h) Change the limits of Pb and As in cobalt concentrate from 0.10% to 0.08% (see 4.7 of this Edition; 4.7 of the 2006 Edition); i) Add the limit of Cr in cobalt concentrate to 0.05% (see 4.7 of this Edition); j) Add the limits of As, Cd and Hg in antimony concentrate to 0.60%, 0.005 0% and 0.005 0% respectively (see 4.8 of this Edition); k) Change the test method for Hg in lead concentrate (see 5.2 of this Edition; 5.2 of the 2006 Edition); l) Add the test methods for Cd and Tl in lead concentrate (see 5.2 of this Edition); m) Add the test method for Tl in zinc concentrate (see 5.3 of this Edition); n) Add the test method for Tl in lead and zinc bulk concentrate (see 5.4 of this Edition); o) Add the test method for Cr in cobalt concentrate (see 5.7 of this Edition); p) Add the test methods for As, Cd and Hg in antimony concentrate (see 5.8 of this Edition); q) Add the content of the inspection rules for antimony concentrate (see Clause 6 of this Editon). Please note some contents of this Document may involve patents. The issuing agency of this Document shall not assume the responsibility to identify these patents. This Document was proposed by China Nonferrous Metals Industry Association. This Document shall be under the jurisdiction of National Technical Committee on Nonferrous Metals of Standardization Administration of China (SAC/TC 243). Drafting organizations of this Document. China Nonferrous Metals Techno-Economic Research Institute Co., Ltd.; Tongling Nonferrous Metals Group Co., Ltd.; Huludao Zinc Industry Co., Ltd.; Shenzhen Zhongjin Lingnan Nonfemet Co., Ltd.; Jinchuan Group Co., Ltd.; Guangxi Huaxi Nonferrous Metal Co., Ltd.; Shuikoushan Nonferrous Metals Co., Ltd.; Zhejiang Huayou Cobalt Co., Ltd.; Hsikwang Shan Twinkling Star Co., Ltd.; Henan Yuguang Gold & Lead Co., Ltd.; China Minmetals Nonferrous Metals Co., Ltd.; Jiangxi Copper Corporation Limited; Yunnan Tin Company Limited; Yunnan Chihong Zn & Ge Co., Ltd.; North Copper Co., Ltd.; GEM Co., Ltd.; North Mining Shares Company Limited; Zhuzhou Smelter Group Co., Ltd.; Jingmen GEM New Materials Co., Ltd.; Zijin Mining Group Co., Ltd.; Shenzhen Zhongjin Lingnan Nonfemet Co., Ltd., Shaoguan Smelter; and Quzhou Huayou Resources Recycling Technology Co., Ltd. Chief drafting staffs of this Document. Zhao Yongshan, Wu Shuaijin, Guo Tianli, Peng Kang, Lin Ruoxu, Su Fei, Yan You, Chen Xuehua, Jin Guizhong, Zhang Benjun, Cai Yong, Yang Chunliang, Li Liangdong, Luo Fuxing, Zuo Changhu, Lei Yangui, Song Yingqiu, Wang Zhichao, Yu Zhongbao, Li Ze, Wang Tiancheng, Zhang Bo, Zhang Chun, Li Lili, Niu Tianrong, Chen Yun, Cai Chuangkai, Xu Kaihua, Liang Xinxing, Wei Qiong, Meng Qingwu, Wu Jiangmin, Zhang Xijun, Liu Yongsong, Hu Weiwen, Qian Zhenyang, Li Wenmei, Liu Fengmei, Yang Chunyu, Bai Peng, Xu Peng, Zhai Aiping, Peng Bo, Zhang Kun, Ye Linfeng, Zhao Liming, Deng Zhenli, Yang Dechen, Li Pengfei, Li Jing, Wang Dawen, Huang Xu, Luo Shen, Zhang Guocheng, Chen Ting, and Sun Xu. GB 20424-2006 was first-time published in 2006; it was transferred into recommended standard in 2017; it is first-time revised hereby. The Specification for Limit on Harmful Element Content of the Heavy Nonferrous Metal Concentrates Products1 ScopeThis Document specifies the limit requirements, test methods and inspection rules for harmful elements contained in heavy non-ferrous metal concentrate products. This Document applies to heavy non-ferrous metal concentrate products.2 Normative ReferencesThe provisions in following documents become the essential provisions of this Document through reference in this Document. For the dated documents, only the versions with the dates indicated are applicable to this Document; for the undated documents, only the latest version (including all the amendments) is applicable to this Document. GB/T 1819.4 Methods for chemical analysis of tin concentrates - Determination of lead content - Flame atomic absorption spectrometric method and EDTA titrimetric method GB/T 1819.5 Methods for chemical analysis of tin concentrates - Determination of arsenic content - The molybdoantimonyarsenate blue spectrophotometric method and the distillation-iodometric titration GB/T 1819.17 Methods for chemical analysis of tin concentrates - Part 17.Determination of mercury content - Atomic fluorescence spectrometric method GB/T 3884.5 Methods for chemical analysis of copper concentrates - Part 5.Determination of fluoride content - Ion selective electrode method GB/T 3884.6 Methods for chemical analysis of copper concentrates - Part 6.Determination of lead, zinc, cadmium and nickel content - Flame atomic absorption spectrometry method GB/T 3884.7 Methods for chemical analysis of copper concentrates - Part 7.Determination of lead content - Na2EDTA titration method3 Terms and DefinitionsFor the purposes of this Document, the following terms and definitions apply. 3.1 Heavy nonferrous metal concentrates products A general term for heavy metal concentrates in nonferrous metals. NOTE. It generally includes copper concentrate, lead concentrate, zinc concentrate, lead and zinc bulk concentrate, tin concentrate, nickel concentrate, cobalt concentrate, antimony concentrate, etc. 3.3 Copper concentrate A concentrate product for copper smelting with a copper content of no less than 13% obtained by flotation or other methods of beneficiation of copper-containing ore. 3.4 Lead concentrate A concentrate product for lead smelting with a lead content of no less than 40% obtained by flotation or other methods of beneficiation of lead-containing ore. 3.6 Lead and zinc bulk concentrate A concentrate product for smelting lead and zinc simultaneously with a lead content of no less than 14%, a zinc content of no less than 28%, 3.7 Tin concentrate A concentrate product for smelting tin with a tin content of no less than 40%, thereof the tin content is no more than 30% for the particle size of no more than 3mm and less than 0.074mm, obtained by flotation or other methods of beneficiation of tin-containing ore. 3.8 Nickel concentrate A concentrate product for smelting nickel with a nickel content of no less than 5.0%, thereof the nickel content is no less than 80% for the particle size of less than 0.074mm, obtained by flotation or other methods of beneficiation of nickel-containing ore.4 Limit Requirements4.1 Copper concentrate The harmful elements contained in copper concentrate shall comply with the provisions of Table 1. 4.2 Lead concentrate The harmful elements contained in lead concentrate shall comply with the provisions of Table 2. 4.3 Zinc concentrate The harmful elements contained in zinc concentrate shall comply with the provisions of Table 3. 4.4 Lead and zinc bulk concentrate The harmful elements contained in lead and zinc bulk concentrate shall comply with the provisions of Table 4. Table 4 -- Limits of harmful elements in lead and zinc bulk concentrate 4.7 Cobalt concentrate The harmful elements contained in cobalt concentrate shall comply with the provisions of Table 7. 4.8 Antimony concentrate The harmful elements contained in antimony concentrate shall comply with the provisions of Table 8.5 Test Methods5.1 Copper concentrate The arbitration analysis methods for the chemical compositions of Pb, As, F, Cd and Hg elements in copper concentrate shall be carried out in accordance with the provisions of GB/T 3884.7, GB/T 3884.9, GB/T 3884.5, GB/T 3884.6 and GB/T3884.11 respectively. 5.2 Lead concentrate The arbitration analysis methods for the chemical compositions of As, Hg, Cd and Tl elements in lead concentrate shall be carried out in accordance with the provisions of GB/T 8152.5, GB/T 8152.11, GB/T 8152.12 and GB/T 8152.13 respectively. 5.4 Lead and zinc bulk concentrate The arbitration analysis methods for the chemical compositions of As, Cd, Hg and Tl elements in lead and zinc bulk concentrate shall be carried out in accordance with the provisions of YS/T 461.4, YS/T 461.7, YS/T 461.6 and YS/T 461.12 respectively. 5.5 Tin concentrate The arbitral analysis methods for the chemical compositions of Pb, As and Hg in tin concentrate shall be carried out in accordance with the provisions of GB/T 1819.4, GB/T 1819.5 and GB/T 1819.17 respectively. 5.7 Cobalt concentrate The arbitration analysis methods for the chemical compositions of Pb, As, Cd, Hg and Cr elements in cobalt concentrate shall be carried out in accordance with the provisions of YS/T 472.4, YS/T 472.5, YS/T 472.1, YS/T 472.3 and YS/T 472.2 respectively.6 Inspection RulesThe inspection rules for harmful elements contained in copper concentrate, lead concentrate, zinc concentrate, lead and zinc bulk concentrate, tin concentrate, nickel concentrate, ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 20424-2025 be delivered?Answer: The full copy PDF of English version of GB/T 20424-2025 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 20424-2025_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 20424-2025_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 20424-2025 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds.Question 5: Should I purchase the latest version GB/T 20424-2025?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 20424-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.How to buy and download a true PDF of English version of GB/T 20424-2025?A step-by-step guide to download PDF of GB/T 20424-2025_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).Step 2: Search keyword "GB/T 20424-2025". Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart. Step 4: Select payment option (Via payment agents Stripe or PayPal). Step 5: Customize Tax Invoice -- Fill up your email etc. Step 6: Click "Checkout". Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively. Step 8: Optional -- Go to download PDF. Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice. See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9 |
